es-abstract - npm Package Compare versions

Comparing version 1.21.3 to 1.22.0

2015/AdvanceStringIndex.js

@@ -5,8 +5,8 @@ 'use strict';
 
-var IsInteger = require('./IsInteger');
 var Type = require('./Type');
 
-var MAX_SAFE_INTEGER = require('../helpers/maxSafeInteger');
+var isInteger = require('../helpers/isInteger');
 var isLeadingSurrogate = require('../helpers/isLeadingSurrogate');
 var isTrailingSurrogate = require('../helpers/isTrailingSurrogate');
+var MAX_SAFE_INTEGER = require('../helpers/maxSafeInteger');
 
@@ -23,3 +23,3 @@ var $TypeError = GetIntrinsic('%TypeError%');
 	}
-	if (!IsInteger(index) || index < 0 || index > MAX_SAFE_INTEGER) {
+	if (!isInteger(index) || index < 0 || index > MAX_SAFE_INTEGER) {
 		throw new $TypeError('Assertion failed: `length` must be an integer >= 0 and <= 2**53');
@@ -26,0 +26,0 @@ }

2015/ArrayCreate.js

@@ -10,3 +10,3 @@ 'use strict';
 
-var IsInteger = require('./IsInteger');
+var isInteger = require('../helpers/isInteger');
 
@@ -29,3 +29,3 @@ var hasProto = require('has-proto')();
 module.exports = function ArrayCreate(length) {
-	if (!IsInteger(length) || length < 0) {
+	if (!isInteger(length) || length < 0) {
 		throw new $TypeError('Assertion failed: `length` must be an integer Number >= 0');
@@ -32,0 +32,0 @@ }

2015/ArraySpeciesCreate.js

@@ -12,9 +12,10 @@ 'use strict';
 var IsConstructor = require('./IsConstructor');
-var IsInteger = require('./IsInteger');
 var Type = require('./Type');
 
+var isInteger = require('../helpers/isInteger');
+
 // https://262.ecma-international.org/6.0/#sec-arrayspeciescreate
 
 module.exports = function ArraySpeciesCreate(originalArray, length) {
-	if (!IsInteger(length) || length < 0) {
+	if (!isInteger(length) || length < 0) {
 		throw new $TypeError('Assertion failed: length must be an integer >= 0');
@@ -21,0 +22,0 @@ }

2015/GetSubstitution.js

@@ -21,14 +21,10 @@
 var IsArray = require('./IsArray');
-var IsInteger = require('./IsInteger');
 var Type = require('./Type');
 
-var canDistinguishSparseFromUndefined = 0 in [undefined]; // IE 6 - 8 have a bug where this returns false
+var isInteger = require('../helpers/isInteger');
+var isStringOrHole = require('../helpers/isStringOrHole');
 
-var isStringOrHole = function (capture, index, arr) {
-	return Type(capture) === 'String' || (canDistinguishSparseFromUndefined ? !(index in arr) : Type(capture) === 'Undefined');
-};
-
 // https://262.ecma-international.org/6.0/#sec-getsubstitution
 
-// eslint-disable-next-line max-statements, max-params, max-lines-per-function
+// eslint-disable-next-line max-statements, max-lines-per-function
 module.exports = function GetSubstitution(matched, str, position, captures, replacement) {
@@ -45,3 +41,3 @@ if (Type(matched) !== 'String') {
 
-	if (!IsInteger(position) || position < 0 || position > stringLength) {
+	if (!isInteger(position) || position < 0 || position > stringLength) {
 		throw new $TypeError('Assertion failed: `position` must be a nonnegative integer, and less than or equal to the length of `string`, got ' + inspect(position));
@@ -48,0 +44,0 @@ }

2015/IsInteger.js

 'use strict';
 
-var abs = require('./abs');
-var floor = require('./floor');
+var isInteger = require('../helpers/isInteger');
 
-var $isNaN = require('../helpers/isNaN');
-var $isFinite = require('../helpers/isFinite');
-
 // https://262.ecma-international.org/6.0/#sec-isinteger
 
 module.exports = function IsInteger(argument) {
-	if (typeof argument !== 'number' || $isNaN(argument) || !$isFinite(argument)) {
-		return false;
-	}
-	var absValue = abs(argument);
-	return floor(absValue) === absValue;
+	return isInteger(argument);
 };

2015/SplitMatch.js

@@ -8,5 +8,6 @@ 'use strict';
 
-var IsInteger = require('./IsInteger');
 var Type = require('./Type');
 
+var isInteger = require('../helpers/isInteger');
+
 var $charAt = callBound('String.prototype.charAt');
@@ -20,3 +21,3 @@
 	}
-	if (!IsInteger(q)) {
+	if (!isInteger(q)) {
 		throw new $TypeError('Assertion failed: `q` must be an integer');
@@ -23,0 +24,0 @@ }

2015/ValidateAndApplyPropertyDescriptor.js

@@ -22,3 +22,3 @@ 'use strict';
 
-// eslint-disable-next-line max-lines-per-function, max-statements, max-params
+// eslint-disable-next-line max-lines-per-function, max-statements
 module.exports = function ValidateAndApplyPropertyDescriptor(O, P, extensible, Desc, current) {
@@ -25,0 +25,0 @@ // this uses the ES2017+ logic, since it fixes a number of bugs in the ES2015 logic.

2016/AdvanceStringIndex.js

@@ -5,8 +5,8 @@ 'use strict';
 
-var IsInteger = require('./IsInteger');
 var Type = require('./Type');
 
-var MAX_SAFE_INTEGER = require('../helpers/maxSafeInteger');
+var isInteger = require('../helpers/isInteger');
 var isLeadingSurrogate = require('../helpers/isLeadingSurrogate');
 var isTrailingSurrogate = require('../helpers/isTrailingSurrogate');
+var MAX_SAFE_INTEGER = require('../helpers/maxSafeInteger');
 
@@ -23,3 +23,3 @@ var $TypeError = GetIntrinsic('%TypeError%');
 	}
-	if (!IsInteger(index) || index < 0 || index > MAX_SAFE_INTEGER) {
+	if (!isInteger(index) || index < 0 || index > MAX_SAFE_INTEGER) {
 		throw new $TypeError('Assertion failed: `length` must be an integer >= 0 and <= 2**53');
@@ -26,0 +26,0 @@ }

2016/ArrayCreate.js

@@ -10,3 +10,3 @@ 'use strict';
 
-var IsInteger = require('./IsInteger');
+var isInteger = require('../helpers/isInteger');
 
@@ -29,3 +29,3 @@ var hasProto = require('has-proto')();
 module.exports = function ArrayCreate(length) {
-	if (!IsInteger(length) || length < 0) {
+	if (!isInteger(length) || length < 0) {
 		throw new $TypeError('Assertion failed: `length` must be an integer Number >= 0');
@@ -32,0 +32,0 @@ }

2016/ArraySpeciesCreate.js

@@ -12,9 +12,10 @@ 'use strict';
 var IsConstructor = require('./IsConstructor');
-var IsInteger = require('./IsInteger');
 var Type = require('./Type');
 
+var isInteger = require('../helpers/isInteger');
+
 // https://262.ecma-international.org/6.0/#sec-arrayspeciescreate
 
 module.exports = function ArraySpeciesCreate(originalArray, length) {
-	if (!IsInteger(length) || length < 0) {
+	if (!isInteger(length) || length < 0) {
 		throw new $TypeError('Assertion failed: length must be an integer >= 0');
@@ -21,0 +22,0 @@ }

2016/GetSubstitution.js

@@ -21,14 +21,10 @@
 var IsArray = require('./IsArray');
-var IsInteger = require('./IsInteger');
 var Type = require('./Type');
 
-var canDistinguishSparseFromUndefined = 0 in [undefined]; // IE 6 - 8 have a bug where this returns false
+var isInteger = require('../helpers/isInteger');
+var isStringOrHole = require('../helpers/isStringOrHole');
 
-var isStringOrHole = function (capture, index, arr) {
-	return Type(capture) === 'String' || (canDistinguishSparseFromUndefined ? !(index in arr) : Type(capture) === 'Undefined');
-};
-
 // https://262.ecma-international.org/6.0/#sec-getsubstitution
 
-// eslint-disable-next-line max-statements, max-params, max-lines-per-function
+// eslint-disable-next-line max-statements, max-lines-per-function
 module.exports = function GetSubstitution(matched, str, position, captures, replacement) {
@@ -45,3 +41,3 @@ if (Type(matched) !== 'String') {
 
-	if (!IsInteger(position) || position < 0 || position > stringLength) {
+	if (!isInteger(position) || position < 0 || position > stringLength) {
 		throw new $TypeError('Assertion failed: `position` must be a nonnegative integer, and less than or equal to the length of `string`, got ' + inspect(position));
@@ -48,0 +44,0 @@ }

2016/IsInteger.js

 'use strict';
 
-var abs = require('./abs');
-var floor = require('./floor');
+var isInteger = require('../helpers/isInteger');
 
-var $isNaN = require('../helpers/isNaN');
-var $isFinite = require('../helpers/isFinite');
-
 // https://262.ecma-international.org/6.0/#sec-isinteger
 
 module.exports = function IsInteger(argument) {
-	if (typeof argument !== 'number' || $isNaN(argument) || !$isFinite(argument)) {
-		return false;
-	}
-	var absValue = abs(argument);
-	return floor(absValue) === absValue;
+	return isInteger(argument);
 };

2016/SplitMatch.js

@@ -8,5 +8,6 @@ 'use strict';
 
-var IsInteger = require('./IsInteger');
 var Type = require('./Type');
 
+var isInteger = require('../helpers/isInteger');
+
 var $charAt = callBound('String.prototype.charAt');
@@ -20,3 +21,3 @@
 	}
-	if (!IsInteger(q)) {
+	if (!isInteger(q)) {
 		throw new $TypeError('Assertion failed: `q` must be an integer');
@@ -23,0 +24,0 @@ }

2016/ValidateAndApplyPropertyDescriptor.js

@@ -22,3 +22,3 @@ 'use strict';
 
-// eslint-disable-next-line max-lines-per-function, max-statements, max-params
+// eslint-disable-next-line max-lines-per-function, max-statements
 module.exports = function ValidateAndApplyPropertyDescriptor(O, P, extensible, Desc, current) {
@@ -25,0 +25,0 @@ // this uses the ES2017+ logic, since it fixes a number of bugs in the ES2015 logic.

2017/AdvanceStringIndex.js

@@ -5,8 +5,8 @@ 'use strict';
 
-var IsInteger = require('./IsInteger');
 var Type = require('./Type');
 
-var MAX_SAFE_INTEGER = require('../helpers/maxSafeInteger');
+var isInteger = require('../helpers/isInteger');
 var isLeadingSurrogate = require('../helpers/isLeadingSurrogate');
 var isTrailingSurrogate = require('../helpers/isTrailingSurrogate');
+var MAX_SAFE_INTEGER = require('../helpers/maxSafeInteger');
 
@@ -23,3 +23,3 @@ var $TypeError = GetIntrinsic('%TypeError%');
 	}
-	if (!IsInteger(index) || index < 0 || index > MAX_SAFE_INTEGER) {
+	if (!isInteger(index) || index < 0 || index > MAX_SAFE_INTEGER) {
 		throw new $TypeError('Assertion failed: `length` must be an integer >= 0 and <= 2**53');
@@ -26,0 +26,0 @@ }

2017/ArrayCreate.js

@@ -10,3 +10,3 @@ 'use strict';
 
-var IsInteger = require('./IsInteger');
+var isInteger = require('../helpers/isInteger');
 
@@ -29,3 +29,3 @@ var hasProto = require('has-proto')();
 module.exports = function ArrayCreate(length) {
-	if (!IsInteger(length) || length < 0) {
+	if (!isInteger(length) || length < 0) {
 		throw new $TypeError('Assertion failed: `length` must be an integer Number >= 0');
@@ -32,0 +32,0 @@ }

2017/ArraySpeciesCreate.js

@@ -12,9 +12,10 @@ 'use strict';
 var IsConstructor = require('./IsConstructor');
-var IsInteger = require('./IsInteger');
 var Type = require('./Type');
 
+var isInteger = require('../helpers/isInteger');
+
 // https://262.ecma-international.org/6.0/#sec-arrayspeciescreate
 
 module.exports = function ArraySpeciesCreate(originalArray, length) {
-	if (!IsInteger(length) || length < 0) {
+	if (!isInteger(length) || length < 0) {
 		throw new $TypeError('Assertion failed: length must be an integer >= 0');
@@ -21,0 +22,0 @@ }

2017/GetSubstitution.js

@@ -21,14 +21,10 @@
 var IsArray = require('./IsArray');
-var IsInteger = require('./IsInteger');
 var Type = require('./Type');
 
-var canDistinguishSparseFromUndefined = 0 in [undefined]; // IE 6 - 8 have a bug where this returns false
+var isInteger = require('../helpers/isInteger');
+var isStringOrHole = require('../helpers/isStringOrHole');
 
-var isStringOrHole = function (capture, index, arr) {
-	return Type(capture) === 'String' || (canDistinguishSparseFromUndefined ? !(index in arr) : Type(capture) === 'Undefined');
-};
-
 // https://262.ecma-international.org/6.0/#sec-getsubstitution
 
-// eslint-disable-next-line max-statements, max-params, max-lines-per-function
+// eslint-disable-next-line max-statements, max-lines-per-function
 module.exports = function GetSubstitution(matched, str, position, captures, replacement) {
@@ -45,3 +41,3 @@ if (Type(matched) !== 'String') {
 
-	if (!IsInteger(position) || position < 0 || position > stringLength) {
+	if (!isInteger(position) || position < 0 || position > stringLength) {
 		throw new $TypeError('Assertion failed: `position` must be a nonnegative integer, and less than or equal to the length of `string`, got ' + inspect(position));
@@ -48,0 +44,0 @@ }

2017/IsInteger.js

 'use strict';
 
-var abs = require('./abs');
-var floor = require('./floor');
+var isInteger = require('../helpers/isInteger');
 
-var $isNaN = require('../helpers/isNaN');
-var $isFinite = require('../helpers/isFinite');
-
 // https://262.ecma-international.org/6.0/#sec-isinteger
 
 module.exports = function IsInteger(argument) {
-	if (typeof argument !== 'number' || $isNaN(argument) || !$isFinite(argument)) {
-		return false;
-	}
-	var absValue = abs(argument);
-	return floor(absValue) === absValue;
+	return isInteger(argument);
 };

2017/NumberToRawBytes.js

@@ -5,21 +5,5 @@ 'use strict';
 
-var $floor = GetIntrinsic('%Math.floor%');
-var $log = GetIntrinsic('%Math.log%');
-var $log2E = GetIntrinsic('%Math.LOG2E%');
-var $log2 = GetIntrinsic('%Math.log2%', true) || function log2(x) {
-	return $log(x) * $log2E;
-};
-var $parseInt = GetIntrinsic('%parseInt%');
-var $pow = GetIntrinsic('%Math.pow%');
 var $TypeError = GetIntrinsic('%TypeError%');
 
-var callBound = require('call-bind/callBound');
-
-var $reverse = callBound('Array.prototype.reverse');
-var $numberToString = callBound('Number.prototype.toString');
-var $strSlice = callBound('String.prototype.slice');
-
-var abs = require('./abs');
 var hasOwnProperty = require('./HasOwnProperty');
-var SameValue = require('./SameValue');
 var ToInt16 = require('./ToInt16');
@@ -34,4 +18,5 @@ var ToInt32 = require('./ToInt32');
 
-var isNaN = require('../helpers/isNaN');
-var isFinite = require('../helpers/isFinite');
+var valueToFloat32Bytes = require('../helpers/valueToFloat32Bytes');
+var valueToFloat64Bytes = require('../helpers/valueToFloat64Bytes');
+var integerToNBytes = require('../helpers/integerToNBytes');
 
@@ -78,101 +63,6 @@ var keys = require('object-keys');
 
-	var rawBytes = [];
-	var exponent;
-
 	if (type === 'Float32') { // step 1
-		if (isNaN(value)) {
-			return isLittleEndian ? [0, 0, 192, 127] : [127, 192, 0, 0]; // hardcoded
-		}
-
-		var leastSig;
-
-		if (value === 0) {
-			leastSig = SameValue(value, -0) ? 0x80 : 0;
-			return isLittleEndian ? [0, 0, 0, leastSig] : [leastSig, 0, 0, 0];
-		}
-
-		if (!isFinite(value)) {
-			leastSig = value < 0 ? 255 : 127;
-			return isLittleEndian ? [0, 0, 128, leastSig] : [leastSig, 128, 0, 0];
-		}
-
-		var sign = value < 0 ? 1 : 0;
-		value = abs(value); // eslint-disable-line no-param-reassign
-
-		exponent = 0;
-		while (value >= 2) {
-			exponent += 1;
-			value /= 2; // eslint-disable-line no-param-reassign
-		}
-
-		while (value < 1) {
-			exponent -= 1;
-			value *= 2; // eslint-disable-line no-param-reassign
-		}
-
-		var mantissa = value - 1;
-		mantissa *= $pow(2, 23);
-		mantissa = $floor(mantissa);
-
-		exponent += 127;
-		exponent = exponent << 23;
-
-		var result = sign << 31;
-		result |= exponent;
-		result |= mantissa;
-
-		var byte0 = result & 255;
-		result = result >> 8;
-		var byte1 = result & 255;
-		result = result >> 8;
-		var byte2 = result & 255;
-		result = result >> 8;
-		var byte3 = result & 255;
-
-		if (isLittleEndian) {
-			return [byte0, byte1, byte2, byte3];
-		}
-		return [byte3, byte2, byte1, byte0];
+		return valueToFloat32Bytes(value, isLittleEndian);
 	} else if (type === 'Float64') { // step 2
-		if (value === 0) {
-			leastSig = Object.is(value, -0) ? 0x80 : 0;
-			return isLittleEndian ? [0, 0, 0, 0, 0, 0, 0, leastSig] : [leastSig, 0, 0, 0, 0, 0, 0, 0];
-		}
-		if (isNaN(value)) {
-			return isLittleEndian ? [0, 0, 0, 0, 0, 0, 248, 127] : [127, 248, 0, 0, 0, 0, 0, 0];
-		}
-		if (!isFinite(value)) {
-			var infBytes = value < 0 ? [0, 0, 0, 0, 0, 0, 240, 255] : [0, 0, 0, 0, 0, 0, 240, 127];
-			return isLittleEndian ? infBytes : $reverse(infBytes);
-		}
-
-		var isNegative = value < 0;
-		if (isNegative) { value = -value; } // eslint-disable-line no-param-reassign
-
-		exponent = $floor($log2(value));
-		var significand = (value / $pow(2, exponent)) - 1;
-
-		var bitString = '';
-		for (var i = 0; i < 52; i++) {
-			significand *= 2;
-			if (significand >= 1) {
-				bitString += '1';
-				significand -= 1;
-			} else {
-				bitString += '0';
-			}
-		}
-
-		exponent += 1023;
-		var exponentBits = $numberToString(exponent, 2);
-		while (exponentBits.length < 11) { exponentBits = '0' + exponentBits; }
-
-		var fullBitString = (isNegative ? '1' : '0') + exponentBits + bitString;
-		while (fullBitString.length < 64) { fullBitString = '0' + fullBitString; }
-
-		for (i = 0; i < 8; i++) {
-			rawBytes[i] = $parseInt($strSlice(fullBitString, i * 8, (i + 1) * 8), 2);
-		}
-
-		return isLittleEndian ? $reverse(rawBytes) : rawBytes;
+		return valueToFloat64Bytes(value, isLittleEndian);
 	} // step 3
@@ -186,18 +76,3 @@
 
-	/*
-	if (intValue >= 0) { // step 3.d
-		// Let rawBytes be a List containing the n-byte binary encoding of intValue. If isLittleEndian is false, the bytes are ordered in big endian order. Otherwise, the bytes are ordered in little endian order.
-	} else { // step 3.e
-		// Let rawBytes be a List containing the n-byte binary 2's complement encoding of intValue. If isLittleEndian is false, the bytes are ordered in big endian order. Otherwise, the bytes are ordered in little endian order.
-	}
-    */
-	if (intValue < 0) {
-		intValue = intValue >>> 0;
-	}
-	for (i = 0; i < n; i++) {
-		rawBytes[isLittleEndian ? i : n - 1 - i] = intValue & 0xff;
-		intValue = intValue >> 8;
-	}
-
-	return rawBytes; // step 4
+	return integerToNBytes(intValue, n, isLittleEndian); // step 3.d, 3.e, 4
 };

2017/RawBytesToNumber.js

@@ -6,3 +6,2 @@ 'use strict';
 
-var $pow = GetIntrinsic('%Math.pow%');
 var $RangeError = GetIntrinsic('%RangeError%');
@@ -19,2 +18,5 @@ var $TypeError = GetIntrinsic('%TypeError%');
 
+var bytesAsFloat32 = require('../helpers/bytesAsFloat32');
+var bytesAsFloat64 = require('../helpers/bytesAsFloat64');
+var bytesAsInteger = require('../helpers/bytesAsInteger');
 var every = require('../helpers/every');
@@ -66,91 +68,10 @@ var isByteValue = require('../helpers/isByteValue');
 	if (type === 'Float32') { // step 3
-		// return new Float32Array(new Uint8Array(rawBytes).buffer)[0];
-
-		/*
-        Let value be the byte elements of rawBytes concatenated and interpreted as a little-endian bit string encoding of an IEEE 754-2008 binary32 value.
-If value is an IEEE 754-2008 binary32 NaN value, return the NaN Number value.
-Return the Number value that corresponds to value.
-        */
-		var sign = rawBytes[3] & 0x80 ? -1 : 1; // Check the sign bit
-		var exponent = ((rawBytes[3] & 0x7F) << 1)
-			| (rawBytes[2] >> 7); // Combine bits for exponent
-		var mantissa = ((rawBytes[2] & 0x7F) << 16)
-			| (rawBytes[1] << 8)
-			| rawBytes[0]; // Combine bits for mantissa
-
-		if (exponent === 0 && mantissa === 0) {
-			return sign === 1 ? 0 : -0;
-		}
-		if (exponent === 0xFF && mantissa === 0) {
-			return sign === 1 ? Infinity : -Infinity;
-		}
-		if (exponent === 0xFF && mantissa !== 0) {
-			return NaN;
-		}
-
-		exponent -= 127; // subtract the bias
-
-		if (exponent === -127) {
-			return sign * mantissa * $pow(2, -126 - 23);
-		}
-		return sign * (1 + (mantissa * $pow(2, -23))) * $pow(2, exponent);
+		return bytesAsFloat32(rawBytes);
 	}
 
 	if (type === 'Float64') { // step 4
-		// return new Float64Array(new Uint8Array(rawBytes).buffer)[0];
-
-		/*
-        Let value be the byte elements of rawBytes concatenated and interpreted as a little-endian bit string encoding of an IEEE 754-2008 binary64 value.
-If value is an IEEE 754-2008 binary64 NaN value, return the NaN Number value.
-Return the Number value that corresponds to value.
-        */
-		var sign = rawBytes[7] & 0x80 ? -1 : 1; // first bit
-		var exponent = ((rawBytes[7] & 0x7F) << 4) // 7 bits from index 7
-			| ((rawBytes[6] & 0xF0) >> 4); // 4 bits from index 6
-		var mantissa = ((rawBytes[6] & 0x0F) * 0x1000000000000) // 4 bits from index 6
-			+ (rawBytes[5] * 0x10000000000) // 8 bits from index 5
-			+ (rawBytes[4] * 0x100000000) // 8 bits from index 4
-			+ (rawBytes[3] * 0x1000000) // 8 bits from index 3
-			+ (rawBytes[2] * 0x10000) // 8 bits from index 2
-			+ (rawBytes[1] * 0x100) // 8 bits from index 1
-			+ rawBytes[0]; // 8 bits from index 0
-
-		if (exponent === 0 && mantissa === 0) {
-			return sign * 0;
-		}
-		if (exponent === 0x7FF && mantissa !== 0) {
-			return NaN;
-		}
-		if (exponent === 0x7FF && mantissa === 0) {
-			return sign * Infinity;
-		}
-
-		exponent -= 1023; // subtract the bias
-
-		// Handle subnormal numbers
-		if (exponent === -1023) {
-			return sign * mantissa * 5e-324; // $pow(2, -1022 - 52)
-		}
-
-		return sign * (1 + (mantissa / 0x10000000000000)) * $pow(2, exponent);
+		return bytesAsFloat64(rawBytes);
 	}
 
-	// this is common to both branches
-	var intValue = 0;
-	for (var i = 0; i < rawBytes.length; i++) {
-		intValue += rawBytes[i] * $pow(2, 8 * i);
-	}
-	/*
-	Let intValue be the byte elements of rawBytes concatenated and interpreted as a bit string encoding of an unsigned little-endian binary number.
-	*/
-
-	if ($charAt(type, 0) !== 'U') { // steps 5-6
-		// Let intValue be the byte elements of rawBytes concatenated and interpreted as a bit string encoding of a binary little-endian 2's complement number of bit length elementSize × 8.
-		var bitLength = elementSize * 8;
-		if (rawBytes[elementSize - 1] & 0x80) {
-			intValue -= $pow(2, bitLength);
-		}
-	}
-
-	return intValue; // step 7
+	return bytesAsInteger(rawBytes, elementSize, $charAt(type, 0) === 'U', false);
 };

2017/SplitMatch.js

@@ -8,5 +8,6 @@ 'use strict';
 
-var IsInteger = require('./IsInteger');
 var Type = require('./Type');
 
+var isInteger = require('../helpers/isInteger');
+
 var $charAt = callBound('String.prototype.charAt');
@@ -20,3 +21,3 @@
 	}
-	if (!IsInteger(q)) {
+	if (!isInteger(q)) {
 		throw new $TypeError('Assertion failed: `q` must be an integer');
@@ -23,0 +24,0 @@ }

2017/ValidateAndApplyPropertyDescriptor.js

@@ -22,3 +22,3 @@ 'use strict';
 
-// eslint-disable-next-line max-lines-per-function, max-statements, max-params
+// eslint-disable-next-line max-lines-per-function, max-statements
 module.exports = function ValidateAndApplyPropertyDescriptor(O, P, extensible, Desc, current) {
@@ -25,0 +25,0 @@ // this uses the ES2017+ logic, since it fixes a number of bugs in the ES2015 logic.

2018/AdvanceStringIndex.js

@@ -5,8 +5,8 @@ 'use strict';
 
-var IsInteger = require('./IsInteger');
 var Type = require('./Type');
 
-var MAX_SAFE_INTEGER = require('../helpers/maxSafeInteger');
+var isInteger = require('../helpers/isInteger');
 var isLeadingSurrogate = require('../helpers/isLeadingSurrogate');
 var isTrailingSurrogate = require('../helpers/isTrailingSurrogate');
+var MAX_SAFE_INTEGER = require('../helpers/maxSafeInteger');
 
@@ -23,3 +23,3 @@ var $TypeError = GetIntrinsic('%TypeError%');
 	}
-	if (!IsInteger(index) || index < 0 || index > MAX_SAFE_INTEGER) {
+	if (!isInteger(index) || index < 0 || index > MAX_SAFE_INTEGER) {
 		throw new $TypeError('Assertion failed: `length` must be an integer >= 0 and <= 2**53');
@@ -26,0 +26,0 @@ }

2018/ArrayCreate.js

@@ -10,3 +10,3 @@ 'use strict';
 
-var IsInteger = require('./IsInteger');
+var isInteger = require('../helpers/isInteger');
 
@@ -29,3 +29,3 @@ var hasProto = require('has-proto')();
 module.exports = function ArrayCreate(length) {
-	if (!IsInteger(length) || length < 0) {
+	if (!isInteger(length) || length < 0) {
 		throw new $TypeError('Assertion failed: `length` must be an integer Number >= 0');
@@ -32,0 +32,0 @@ }

2018/ArraySpeciesCreate.js

@@ -12,9 +12,10 @@ 'use strict';
 var IsConstructor = require('./IsConstructor');
-var IsInteger = require('./IsInteger');
 var Type = require('./Type');
 
+var isInteger = require('../helpers/isInteger');
+
 // https://262.ecma-international.org/6.0/#sec-arrayspeciescreate
 
 module.exports = function ArraySpeciesCreate(originalArray, length) {
-	if (!IsInteger(length) || length < 0) {
+	if (!isInteger(length) || length < 0) {
 		throw new $TypeError('Assertion failed: length must be an integer >= 0');
@@ -21,0 +22,0 @@ }

2018/GetSubstitution.js

@@ -22,3 +22,2 @@ 'use strict';
 var IsArray = require('./IsArray');
-var IsInteger = require('./IsInteger');
 var ToObject = require('./ToObject');
@@ -28,8 +27,5 @@ var ToString = require('./ToString');
 
-var canDistinguishSparseFromUndefined = 0 in [undefined]; // IE 6 - 8 have a bug where this returns false
+var isInteger = require('../helpers/isInteger');
+var isStringOrHole = require('../helpers/isStringOrHole');
 
-var isStringOrHole = function (capture, index, arr) {
-	return Type(capture) === 'String' || (canDistinguishSparseFromUndefined ? !(index in arr) : Type(capture) === 'Undefined');
-};
-
 // http://262.ecma-international.org/9.0/#sec-getsubstitution
@@ -49,3 +45,3 @@
 
-	if (!IsInteger(position) || position < 0 || position > stringLength) {
+	if (!isInteger(position) || position < 0 || position > stringLength) {
 		throw new $TypeError('Assertion failed: `position` must be a nonnegative integer, and less than or equal to the length of `string`, got ' + inspect(position));
@@ -52,0 +48,0 @@ }

2018/IsInteger.js

 'use strict';
 
-var abs = require('./abs');
-var floor = require('./floor');
+var isInteger = require('../helpers/isInteger');
 
-var $isNaN = require('../helpers/isNaN');
-var $isFinite = require('../helpers/isFinite');
-
 // https://262.ecma-international.org/6.0/#sec-isinteger
 
 module.exports = function IsInteger(argument) {
-	if (typeof argument !== 'number' || $isNaN(argument) || !$isFinite(argument)) {
-		return false;
-	}
-	var absValue = abs(argument);
-	return floor(absValue) === absValue;
+	return isInteger(argument);
 };

2018/NumberToRawBytes.js

@@ -5,21 +5,5 @@ 'use strict';
 
-var $floor = GetIntrinsic('%Math.floor%');
-var $log = GetIntrinsic('%Math.log%');
-var $log2E = GetIntrinsic('%Math.LOG2E%');
-var $log2 = GetIntrinsic('%Math.log2%', true) || function log2(x) {
-	return $log(x) * $log2E;
-};
-var $parseInt = GetIntrinsic('%parseInt%');
-var $pow = GetIntrinsic('%Math.pow%');
 var $TypeError = GetIntrinsic('%TypeError%');
 
-var callBound = require('call-bind/callBound');
-
-var $reverse = callBound('Array.prototype.reverse');
-var $numberToString = callBound('Number.prototype.toString');
-var $strSlice = callBound('String.prototype.slice');
-
-var abs = require('./abs');
 var hasOwnProperty = require('./HasOwnProperty');
-var SameValue = require('./SameValue');
 var ToInt16 = require('./ToInt16');
@@ -34,4 +18,5 @@ var ToInt32 = require('./ToInt32');
 
-var isNaN = require('../helpers/isNaN');
-var isFinite = require('../helpers/isFinite');
+var valueToFloat32Bytes = require('../helpers/valueToFloat32Bytes');
+var valueToFloat64Bytes = require('../helpers/valueToFloat64Bytes');
+var integerToNBytes = require('../helpers/integerToNBytes');
 
@@ -78,101 +63,6 @@ var keys = require('object-keys');
 
-	var rawBytes = [];
-	var exponent;
-
 	if (type === 'Float32') { // step 1
-		if (isNaN(value)) {
-			return isLittleEndian ? [0, 0, 192, 127] : [127, 192, 0, 0]; // hardcoded
-		}
-
-		var leastSig;
-
-		if (value === 0) {
-			leastSig = SameValue(value, -0) ? 0x80 : 0;
-			return isLittleEndian ? [0, 0, 0, leastSig] : [leastSig, 0, 0, 0];
-		}
-
-		if (!isFinite(value)) {
-			leastSig = value < 0 ? 255 : 127;
-			return isLittleEndian ? [0, 0, 128, leastSig] : [leastSig, 128, 0, 0];
-		}
-
-		var sign = value < 0 ? 1 : 0;
-		value = abs(value); // eslint-disable-line no-param-reassign
-
-		exponent = 0;
-		while (value >= 2) {
-			exponent += 1;
-			value /= 2; // eslint-disable-line no-param-reassign
-		}
-
-		while (value < 1) {
-			exponent -= 1;
-			value *= 2; // eslint-disable-line no-param-reassign
-		}
-
-		var mantissa = value - 1;
-		mantissa *= $pow(2, 23);
-		mantissa = $floor(mantissa);
-
-		exponent += 127;
-		exponent = exponent << 23;
-
-		var result = sign << 31;
-		result |= exponent;
-		result |= mantissa;
-
-		var byte0 = result & 255;
-		result = result >> 8;
-		var byte1 = result & 255;
-		result = result >> 8;
-		var byte2 = result & 255;
-		result = result >> 8;
-		var byte3 = result & 255;
-
-		if (isLittleEndian) {
-			return [byte0, byte1, byte2, byte3];
-		}
-		return [byte3, byte2, byte1, byte0];
+		return valueToFloat32Bytes(value, isLittleEndian);
 	} else if (type === 'Float64') { // step 2
-		if (value === 0) {
-			leastSig = Object.is(value, -0) ? 0x80 : 0;
-			return isLittleEndian ? [0, 0, 0, 0, 0, 0, 0, leastSig] : [leastSig, 0, 0, 0, 0, 0, 0, 0];
-		}
-		if (isNaN(value)) {
-			return isLittleEndian ? [0, 0, 0, 0, 0, 0, 248, 127] : [127, 248, 0, 0, 0, 0, 0, 0];
-		}
-		if (!isFinite(value)) {
-			var infBytes = value < 0 ? [0, 0, 0, 0, 0, 0, 240, 255] : [0, 0, 0, 0, 0, 0, 240, 127];
-			return isLittleEndian ? infBytes : $reverse(infBytes);
-		}
-
-		var isNegative = value < 0;
-		if (isNegative) { value = -value; } // eslint-disable-line no-param-reassign
-
-		exponent = $floor($log2(value));
-		var significand = (value / $pow(2, exponent)) - 1;
-
-		var bitString = '';
-		for (var i = 0; i < 52; i++) {
-			significand *= 2;
-			if (significand >= 1) {
-				bitString += '1';
-				significand -= 1;
-			} else {
-				bitString += '0';
-			}
-		}
-
-		exponent += 1023;
-		var exponentBits = $numberToString(exponent, 2);
-		while (exponentBits.length < 11) { exponentBits = '0' + exponentBits; }
-
-		var fullBitString = (isNegative ? '1' : '0') + exponentBits + bitString;
-		while (fullBitString.length < 64) { fullBitString = '0' + fullBitString; }
-
-		for (i = 0; i < 8; i++) {
-			rawBytes[i] = $parseInt($strSlice(fullBitString, i * 8, (i + 1) * 8), 2);
-		}
-
-		return isLittleEndian ? $reverse(rawBytes) : rawBytes;
+		return valueToFloat64Bytes(value, isLittleEndian);
 	} // step 3
@@ -186,18 +76,3 @@
 
-	/*
-	if (intValue >= 0) { // step 3.d
-		// Let rawBytes be a List containing the n-byte binary encoding of intValue. If isLittleEndian is false, the bytes are ordered in big endian order. Otherwise, the bytes are ordered in little endian order.
-	} else { // step 3.e
-		// Let rawBytes be a List containing the n-byte binary 2's complement encoding of intValue. If isLittleEndian is false, the bytes are ordered in big endian order. Otherwise, the bytes are ordered in little endian order.
-	}
-    */
-	if (intValue < 0) {
-		intValue = intValue >>> 0;
-	}
-	for (i = 0; i < n; i++) {
-		rawBytes[isLittleEndian ? i : n - 1 - i] = intValue & 0xff;
-		intValue = intValue >> 8;
-	}
-
-	return rawBytes; // step 4
+	return integerToNBytes(intValue, n, isLittleEndian); // step 3.d, 3.e, 4
 };

2018/RawBytesToNumber.js

@@ -6,3 +6,2 @@ 'use strict';
 
-var $pow = GetIntrinsic('%Math.pow%');
 var $RangeError = GetIntrinsic('%RangeError%');
@@ -19,2 +18,5 @@ var $TypeError = GetIntrinsic('%TypeError%');
 
+var bytesAsFloat32 = require('../helpers/bytesAsFloat32');
+var bytesAsFloat64 = require('../helpers/bytesAsFloat64');
+var bytesAsInteger = require('../helpers/bytesAsInteger');
 var every = require('../helpers/every');
@@ -66,91 +68,10 @@ var isByteValue = require('../helpers/isByteValue');
 	if (type === 'Float32') { // step 3
-		// return new Float32Array(new Uint8Array(rawBytes).buffer)[0];
-
-		/*
-        Let value be the byte elements of rawBytes concatenated and interpreted as a little-endian bit string encoding of an IEEE 754-2008 binary32 value.
-If value is an IEEE 754-2008 binary32 NaN value, return the NaN Number value.
-Return the Number value that corresponds to value.
-        */
-		var sign = rawBytes[3] & 0x80 ? -1 : 1; // Check the sign bit
-		var exponent = ((rawBytes[3] & 0x7F) << 1)
-			| (rawBytes[2] >> 7); // Combine bits for exponent
-		var mantissa = ((rawBytes[2] & 0x7F) << 16)
-			| (rawBytes[1] << 8)
-			| rawBytes[0]; // Combine bits for mantissa
-
-		if (exponent === 0 && mantissa === 0) {
-			return sign === 1 ? 0 : -0;
-		}
-		if (exponent === 0xFF && mantissa === 0) {
-			return sign === 1 ? Infinity : -Infinity;
-		}
-		if (exponent === 0xFF && mantissa !== 0) {
-			return NaN;
-		}
-
-		exponent -= 127; // subtract the bias
-
-		if (exponent === -127) {
-			return sign * mantissa * $pow(2, -126 - 23);
-		}
-		return sign * (1 + (mantissa * $pow(2, -23))) * $pow(2, exponent);
+		return bytesAsFloat32(rawBytes);
 	}
 
 	if (type === 'Float64') { // step 4
-		// return new Float64Array(new Uint8Array(rawBytes).buffer)[0];
-
-		/*
-        Let value be the byte elements of rawBytes concatenated and interpreted as a little-endian bit string encoding of an IEEE 754-2008 binary64 value.
-If value is an IEEE 754-2008 binary64 NaN value, return the NaN Number value.
-Return the Number value that corresponds to value.
-        */
-		var sign = rawBytes[7] & 0x80 ? -1 : 1; // first bit
-		var exponent = ((rawBytes[7] & 0x7F) << 4) // 7 bits from index 7
-			| ((rawBytes[6] & 0xF0) >> 4); // 4 bits from index 6
-		var mantissa = ((rawBytes[6] & 0x0F) * 0x1000000000000) // 4 bits from index 6
-			+ (rawBytes[5] * 0x10000000000) // 8 bits from index 5
-			+ (rawBytes[4] * 0x100000000) // 8 bits from index 4
-			+ (rawBytes[3] * 0x1000000) // 8 bits from index 3
-			+ (rawBytes[2] * 0x10000) // 8 bits from index 2
-			+ (rawBytes[1] * 0x100) // 8 bits from index 1
-			+ rawBytes[0]; // 8 bits from index 0
-
-		if (exponent === 0 && mantissa === 0) {
-			return sign * 0;
-		}
-		if (exponent === 0x7FF && mantissa !== 0) {
-			return NaN;
-		}
-		if (exponent === 0x7FF && mantissa === 0) {
-			return sign * Infinity;
-		}
-
-		exponent -= 1023; // subtract the bias
-
-		// Handle subnormal numbers
-		if (exponent === -1023) {
-			return sign * mantissa * 5e-324; // $pow(2, -1022 - 52)
-		}
-
-		return sign * (1 + (mantissa / 0x10000000000000)) * $pow(2, exponent);
+		return bytesAsFloat64(rawBytes);
 	}
 
-	// this is common to both branches
-	var intValue = 0;
-	for (var i = 0; i < rawBytes.length; i++) {
-		intValue += rawBytes[i] * $pow(2, 8 * i);
-	}
-	/*
-	Let intValue be the byte elements of rawBytes concatenated and interpreted as a bit string encoding of an unsigned little-endian binary number.
-	*/
-
-	if ($charAt(type, 0) !== 'U') { // steps 5-6
-		// Let intValue be the byte elements of rawBytes concatenated and interpreted as a bit string encoding of a binary little-endian 2's complement number of bit length elementSize × 8.
-		var bitLength = elementSize * 8;
-		if (rawBytes[elementSize - 1] & 0x80) {
-			intValue -= $pow(2, bitLength);
-		}
-	}
-
-	return intValue; // step 7
+	return bytesAsInteger(rawBytes, elementSize, $charAt(type, 0) === 'U', false);
 };

2018/SetFunctionLength.js

@@ -10,5 +10,6 @@ 'use strict';
 var IsExtensible = require('./IsExtensible');
-var IsInteger = require('./IsInteger');
 var Type = require('./Type');
 
+var isInteger = require('../helpers/isInteger');
+
 // https://262.ecma-international.org/9.0/#sec-setfunctionlength
@@ -23,3 +24,3 @@
 	}
-	if (length < 0 || !IsInteger(length)) {
+	if (length < 0 || !isInteger(length)) {
 		throw new $TypeError('Assertion failed: `length` must be an integer >= 0');
@@ -26,0 +27,0 @@ }

2018/SplitMatch.js

@@ -8,5 +8,6 @@ 'use strict';
 
-var IsInteger = require('./IsInteger');
 var Type = require('./Type');
 
+var isInteger = require('../helpers/isInteger');
+
 var $charAt = callBound('String.prototype.charAt');
@@ -20,3 +21,3 @@
 	}
-	if (!IsInteger(q)) {
+	if (!isInteger(q)) {
 		throw new $TypeError('Assertion failed: `q` must be an integer');
@@ -23,0 +24,0 @@ }

2018/ValidateAndApplyPropertyDescriptor.js

@@ -22,3 +22,3 @@ 'use strict';
 
-// eslint-disable-next-line max-lines-per-function, max-statements, max-params
+// eslint-disable-next-line max-lines-per-function, max-statements
 module.exports = function ValidateAndApplyPropertyDescriptor(O, P, extensible, Desc, current) {
@@ -25,0 +25,0 @@ // this uses the ES2017+ logic, since it fixes a number of bugs in the ES2015 logic.

2019/AdvanceStringIndex.js

@@ -5,8 +5,8 @@ 'use strict';
 
-var IsInteger = require('./IsInteger');
 var Type = require('./Type');
 
-var MAX_SAFE_INTEGER = require('../helpers/maxSafeInteger');
+var isInteger = require('../helpers/isInteger');
 var isLeadingSurrogate = require('../helpers/isLeadingSurrogate');
 var isTrailingSurrogate = require('../helpers/isTrailingSurrogate');
+var MAX_SAFE_INTEGER = require('../helpers/maxSafeInteger');
 
@@ -23,3 +23,3 @@ var $TypeError = GetIntrinsic('%TypeError%');
 	}
-	if (!IsInteger(index) || index < 0 || index > MAX_SAFE_INTEGER) {
+	if (!isInteger(index) || index < 0 || index > MAX_SAFE_INTEGER) {
 		throw new $TypeError('Assertion failed: `length` must be an integer >= 0 and <= 2**53');
@@ -26,0 +26,0 @@ }

2019/ArrayCreate.js

@@ -10,3 +10,3 @@ 'use strict';
 
-var IsInteger = require('./IsInteger');
+var isInteger = require('../helpers/isInteger');
 
@@ -29,3 +29,3 @@ var hasProto = require('has-proto')();
 module.exports = function ArrayCreate(length) {
-	if (!IsInteger(length) || length < 0) {
+	if (!isInteger(length) || length < 0) {
 		throw new $TypeError('Assertion failed: `length` must be an integer Number >= 0');
@@ -32,0 +32,0 @@ }

2019/ArraySpeciesCreate.js

@@ -12,9 +12,10 @@ 'use strict';
 var IsConstructor = require('./IsConstructor');
-var IsInteger = require('./IsInteger');
 var Type = require('./Type');
 
+var isInteger = require('../helpers/isInteger');
+
 // https://262.ecma-international.org/6.0/#sec-arrayspeciescreate
 
 module.exports = function ArraySpeciesCreate(originalArray, length) {
-	if (!IsInteger(length) || length < 0) {
+	if (!isInteger(length) || length < 0) {
 		throw new $TypeError('Assertion failed: length must be an integer >= 0');
@@ -21,0 +22,0 @@ }

2019/FlattenIntoArray.js

@@ -19,3 +19,2 @@ 'use strict';
 
-// eslint-disable-next-line max-params
 module.exports = function FlattenIntoArray(target, source, sourceLen, start, depth) {
@@ -22,0 +21,0 @@ var mapperFunction;

2019/GetSubstitution.js

@@ -22,3 +22,2 @@ 'use strict';
 var IsArray = require('./IsArray');
-var IsInteger = require('./IsInteger');
 var ToObject = require('./ToObject');
@@ -28,8 +27,5 @@ var ToString = require('./ToString');
 
-var canDistinguishSparseFromUndefined = 0 in [undefined]; // IE 6 - 8 have a bug where this returns false
+var isInteger = require('../helpers/isInteger');
+var isStringOrHole = require('../helpers/isStringOrHole');
 
-var isStringOrHole = function (capture, index, arr) {
-	return Type(capture) === 'String' || (canDistinguishSparseFromUndefined ? !(index in arr) : Type(capture) === 'Undefined');
-};
-
 // http://262.ecma-international.org/9.0/#sec-getsubstitution
@@ -49,3 +45,3 @@
 
-	if (!IsInteger(position) || position < 0 || position > stringLength) {
+	if (!isInteger(position) || position < 0 || position > stringLength) {
 		throw new $TypeError('Assertion failed: `position` must be a nonnegative integer, and less than or equal to the length of `string`, got ' + inspect(position));
@@ -52,0 +48,0 @@ }

2019/IsInteger.js

 'use strict';
 
-var abs = require('./abs');
-var floor = require('./floor');
+var isInteger = require('../helpers/isInteger');
 
-var $isNaN = require('../helpers/isNaN');
-var $isFinite = require('../helpers/isFinite');
-
 // https://262.ecma-international.org/6.0/#sec-isinteger
 
 module.exports = function IsInteger(argument) {
-	if (typeof argument !== 'number' || $isNaN(argument) || !$isFinite(argument)) {
-		return false;
-	}
-	var absValue = abs(argument);
-	return floor(absValue) === absValue;
+	return isInteger(argument);
 };

2019/NumberToRawBytes.js

@@ -5,21 +5,5 @@ 'use strict';
 
-var $floor = GetIntrinsic('%Math.floor%');
-var $log = GetIntrinsic('%Math.log%');
-var $log2E = GetIntrinsic('%Math.LOG2E%');
-var $log2 = GetIntrinsic('%Math.log2%', true) || function log2(x) {
-	return $log(x) * $log2E;
-};
-var $parseInt = GetIntrinsic('%parseInt%');
-var $pow = GetIntrinsic('%Math.pow%');
 var $TypeError = GetIntrinsic('%TypeError%');
 
-var callBound = require('call-bind/callBound');
-
-var $reverse = callBound('Array.prototype.reverse');
-var $numberToString = callBound('Number.prototype.toString');
-var $strSlice = callBound('String.prototype.slice');
-
-var abs = require('./abs');
 var hasOwnProperty = require('./HasOwnProperty');
-var SameValue = require('./SameValue');
 var ToInt16 = require('./ToInt16');
@@ -34,4 +18,5 @@ var ToInt32 = require('./ToInt32');
 
-var isNaN = require('../helpers/isNaN');
-var isFinite = require('../helpers/isFinite');
+var valueToFloat32Bytes = require('../helpers/valueToFloat32Bytes');
+var valueToFloat64Bytes = require('../helpers/valueToFloat64Bytes');
+var integerToNBytes = require('../helpers/integerToNBytes');
 
@@ -78,101 +63,6 @@ var keys = require('object-keys');
 
-	var rawBytes = [];
-	var exponent;
-
 	if (type === 'Float32') { // step 1
-		if (isNaN(value)) {
-			return isLittleEndian ? [0, 0, 192, 127] : [127, 192, 0, 0]; // hardcoded
-		}
-
-		var leastSig;
-
-		if (value === 0) {
-			leastSig = SameValue(value, -0) ? 0x80 : 0;
-			return isLittleEndian ? [0, 0, 0, leastSig] : [leastSig, 0, 0, 0];
-		}
-
-		if (!isFinite(value)) {
-			leastSig = value < 0 ? 255 : 127;
-			return isLittleEndian ? [0, 0, 128, leastSig] : [leastSig, 128, 0, 0];
-		}
-
-		var sign = value < 0 ? 1 : 0;
-		value = abs(value); // eslint-disable-line no-param-reassign
-
-		exponent = 0;
-		while (value >= 2) {
-			exponent += 1;
-			value /= 2; // eslint-disable-line no-param-reassign
-		}
-
-		while (value < 1) {
-			exponent -= 1;
-			value *= 2; // eslint-disable-line no-param-reassign
-		}
-
-		var mantissa = value - 1;
-		mantissa *= $pow(2, 23);
-		mantissa = $floor(mantissa);
-
-		exponent += 127;
-		exponent = exponent << 23;
-
-		var result = sign << 31;
-		result |= exponent;
-		result |= mantissa;
-
-		var byte0 = result & 255;
-		result = result >> 8;
-		var byte1 = result & 255;
-		result = result >> 8;
-		var byte2 = result & 255;
-		result = result >> 8;
-		var byte3 = result & 255;
-
-		if (isLittleEndian) {
-			return [byte0, byte1, byte2, byte3];
-		}
-		return [byte3, byte2, byte1, byte0];
+		return valueToFloat32Bytes(value, isLittleEndian);
 	} else if (type === 'Float64') { // step 2
-		if (value === 0) {
-			leastSig = Object.is(value, -0) ? 0x80 : 0;
-			return isLittleEndian ? [0, 0, 0, 0, 0, 0, 0, leastSig] : [leastSig, 0, 0, 0, 0, 0, 0, 0];
-		}
-		if (isNaN(value)) {
-			return isLittleEndian ? [0, 0, 0, 0, 0, 0, 248, 127] : [127, 248, 0, 0, 0, 0, 0, 0];
-		}
-		if (!isFinite(value)) {
-			var infBytes = value < 0 ? [0, 0, 0, 0, 0, 0, 240, 255] : [0, 0, 0, 0, 0, 0, 240, 127];
-			return isLittleEndian ? infBytes : $reverse(infBytes);
-		}
-
-		var isNegative = value < 0;
-		if (isNegative) { value = -value; } // eslint-disable-line no-param-reassign
-
-		exponent = $floor($log2(value));
-		var significand = (value / $pow(2, exponent)) - 1;
-
-		var bitString = '';
-		for (var i = 0; i < 52; i++) {
-			significand *= 2;
-			if (significand >= 1) {
-				bitString += '1';
-				significand -= 1;
-			} else {
-				bitString += '0';
-			}
-		}
-
-		exponent += 1023;
-		var exponentBits = $numberToString(exponent, 2);
-		while (exponentBits.length < 11) { exponentBits = '0' + exponentBits; }
-
-		var fullBitString = (isNegative ? '1' : '0') + exponentBits + bitString;
-		while (fullBitString.length < 64) { fullBitString = '0' + fullBitString; }
-
-		for (i = 0; i < 8; i++) {
-			rawBytes[i] = $parseInt($strSlice(fullBitString, i * 8, (i + 1) * 8), 2);
-		}
-
-		return isLittleEndian ? $reverse(rawBytes) : rawBytes;
+		return valueToFloat64Bytes(value, isLittleEndian);
 	} // step 3
@@ -186,18 +76,3 @@
 
-	/*
-	if (intValue >= 0) { // step 3.d
-		// Let rawBytes be a List containing the n-byte binary encoding of intValue. If isLittleEndian is false, the bytes are ordered in big endian order. Otherwise, the bytes are ordered in little endian order.
-	} else { // step 3.e
-		// Let rawBytes be a List containing the n-byte binary 2's complement encoding of intValue. If isLittleEndian is false, the bytes are ordered in big endian order. Otherwise, the bytes are ordered in little endian order.
-	}
-    */
-	if (intValue < 0) {
-		intValue = intValue >>> 0;
-	}
-	for (i = 0; i < n; i++) {
-		rawBytes[isLittleEndian ? i : n - 1 - i] = intValue & 0xff;
-		intValue = intValue >> 8;
-	}
-
-	return rawBytes; // step 4
+	return integerToNBytes(intValue, n, isLittleEndian); // step 3.d, 3.e, 4
 };

2019/RawBytesToNumber.js

@@ -6,3 +6,2 @@ 'use strict';
 
-var $pow = GetIntrinsic('%Math.pow%');
 var $RangeError = GetIntrinsic('%RangeError%');
@@ -19,2 +18,5 @@ var $TypeError = GetIntrinsic('%TypeError%');
 
+var bytesAsFloat32 = require('../helpers/bytesAsFloat32');
+var bytesAsFloat64 = require('../helpers/bytesAsFloat64');
+var bytesAsInteger = require('../helpers/bytesAsInteger');
 var every = require('../helpers/every');
@@ -66,91 +68,10 @@ var isByteValue = require('../helpers/isByteValue');
 	if (type === 'Float32') { // step 3
-		// return new Float32Array(new Uint8Array(rawBytes).buffer)[0];
-
-		/*
-        Let value be the byte elements of rawBytes concatenated and interpreted as a little-endian bit string encoding of an IEEE 754-2008 binary32 value.
-If value is an IEEE 754-2008 binary32 NaN value, return the NaN Number value.
-Return the Number value that corresponds to value.
-        */
-		var sign = rawBytes[3] & 0x80 ? -1 : 1; // Check the sign bit
-		var exponent = ((rawBytes[3] & 0x7F) << 1)
-			| (rawBytes[2] >> 7); // Combine bits for exponent
-		var mantissa = ((rawBytes[2] & 0x7F) << 16)
-			| (rawBytes[1] << 8)
-			| rawBytes[0]; // Combine bits for mantissa
-
-		if (exponent === 0 && mantissa === 0) {
-			return sign === 1 ? 0 : -0;
-		}
-		if (exponent === 0xFF && mantissa === 0) {
-			return sign === 1 ? Infinity : -Infinity;
-		}
-		if (exponent === 0xFF && mantissa !== 0) {
-			return NaN;
-		}
-
-		exponent -= 127; // subtract the bias
-
-		if (exponent === -127) {
-			return sign * mantissa * $pow(2, -126 - 23);
-		}
-		return sign * (1 + (mantissa * $pow(2, -23))) * $pow(2, exponent);
+		return bytesAsFloat32(rawBytes);
 	}
 
 	if (type === 'Float64') { // step 4
-		// return new Float64Array(new Uint8Array(rawBytes).buffer)[0];
-
-		/*
-        Let value be the byte elements of rawBytes concatenated and interpreted as a little-endian bit string encoding of an IEEE 754-2008 binary64 value.
-If value is an IEEE 754-2008 binary64 NaN value, return the NaN Number value.
-Return the Number value that corresponds to value.
-        */
-		var sign = rawBytes[7] & 0x80 ? -1 : 1; // first bit
-		var exponent = ((rawBytes[7] & 0x7F) << 4) // 7 bits from index 7
-			| ((rawBytes[6] & 0xF0) >> 4); // 4 bits from index 6
-		var mantissa = ((rawBytes[6] & 0x0F) * 0x1000000000000) // 4 bits from index 6
-			+ (rawBytes[5] * 0x10000000000) // 8 bits from index 5
-			+ (rawBytes[4] * 0x100000000) // 8 bits from index 4
-			+ (rawBytes[3] * 0x1000000) // 8 bits from index 3
-			+ (rawBytes[2] * 0x10000) // 8 bits from index 2
-			+ (rawBytes[1] * 0x100) // 8 bits from index 1
-			+ rawBytes[0]; // 8 bits from index 0
-
-		if (exponent === 0 && mantissa === 0) {
-			return sign * 0;
-		}
-		if (exponent === 0x7FF && mantissa !== 0) {
-			return NaN;
-		}
-		if (exponent === 0x7FF && mantissa === 0) {
-			return sign * Infinity;
-		}
-
-		exponent -= 1023; // subtract the bias
-
-		// Handle subnormal numbers
-		if (exponent === -1023) {
-			return sign * mantissa * 5e-324; // $pow(2, -1022 - 52)
-		}
-
-		return sign * (1 + (mantissa / 0x10000000000000)) * $pow(2, exponent);
+		return bytesAsFloat64(rawBytes);
 	}
 
-	// this is common to both branches
-	var intValue = 0;
-	for (var i = 0; i < rawBytes.length; i++) {
-		intValue += rawBytes[i] * $pow(2, 8 * i);
-	}
-	/*
-	Let intValue be the byte elements of rawBytes concatenated and interpreted as a bit string encoding of an unsigned little-endian binary number.
-	*/
-
-	if ($charAt(type, 0) !== 'U') { // steps 5-6
-		// Let intValue be the byte elements of rawBytes concatenated and interpreted as a bit string encoding of a binary little-endian 2's complement number of bit length elementSize × 8.
-		var bitLength = elementSize * 8;
-		if (rawBytes[elementSize - 1] & 0x80) {
-			intValue -= $pow(2, bitLength);
-		}
-	}
-
-	return intValue; // step 7
+	return bytesAsInteger(rawBytes, elementSize, $charAt(type, 0) === 'U', false);
 };

2019/SetFunctionLength.js

@@ -10,5 +10,6 @@ 'use strict';
 var IsExtensible = require('./IsExtensible');
-var IsInteger = require('./IsInteger');
 var Type = require('./Type');
 
+var isInteger = require('../helpers/isInteger');
+
 // https://262.ecma-international.org/9.0/#sec-setfunctionlength
@@ -23,3 +24,3 @@
 	}
-	if (length < 0 || !IsInteger(length)) {
+	if (length < 0 || !isInteger(length)) {
 		throw new $TypeError('Assertion failed: `length` must be an integer >= 0');
@@ -26,0 +27,0 @@ }

2019/SplitMatch.js

@@ -8,5 +8,6 @@ 'use strict';
 
-var IsInteger = require('./IsInteger');
 var Type = require('./Type');
 
+var isInteger = require('../helpers/isInteger');
+
 var $charAt = callBound('String.prototype.charAt');
@@ -20,3 +21,3 @@
 	}
-	if (!IsInteger(q)) {
+	if (!isInteger(q)) {
 		throw new $TypeError('Assertion failed: `q` must be an integer');
@@ -23,0 +24,0 @@ }

2019/ValidateAndApplyPropertyDescriptor.js

@@ -22,3 +22,3 @@ 'use strict';
 
-// eslint-disable-next-line max-lines-per-function, max-statements, max-params
+// eslint-disable-next-line max-lines-per-function, max-statements
 module.exports = function ValidateAndApplyPropertyDescriptor(O, P, extensible, Desc, current) {
@@ -25,0 +25,0 @@ // this uses the ES2017+ logic, since it fixes a number of bugs in the ES2015 logic.

2020/AdvanceStringIndex.js

@@ -6,5 +6,5 @@ 'use strict';
 var CodePointAt = require('./CodePointAt');
-var IsInteger = require('./IsInteger');
 var Type = require('./Type');
 
+var isInteger = require('../helpers/isInteger');
 var MAX_SAFE_INTEGER = require('../helpers/maxSafeInteger');
@@ -20,3 +20,3 @@
 	}
-	if (!IsInteger(index) || index < 0 || index > MAX_SAFE_INTEGER) {
+	if (!isInteger(index) || index < 0 || index > MAX_SAFE_INTEGER) {
 		throw new $TypeError('Assertion failed: `length` must be an integer >= 0 and <= 2**53');
@@ -23,0 +23,0 @@ }

2020/ArrayCreate.js

@@ -10,3 +10,3 @@ 'use strict';
 
-var IsInteger = require('./IsInteger');
+var isInteger = require('../helpers/isInteger');
 
@@ -29,3 +29,3 @@ var hasProto = require('has-proto')();
 module.exports = function ArrayCreate(length) {
-	if (!IsInteger(length) || length < 0) {
+	if (!isInteger(length) || length < 0) {
 		throw new $TypeError('Assertion failed: `length` must be an integer Number >= 0');
@@ -32,0 +32,0 @@ }

2020/ArraySpeciesCreate.js

@@ -12,9 +12,10 @@ 'use strict';
 var IsConstructor = require('./IsConstructor');
-var IsInteger = require('./IsInteger');
 var Type = require('./Type');
 
+var isInteger = require('../helpers/isInteger');
+
 // https://262.ecma-international.org/6.0/#sec-arrayspeciescreate
 
 module.exports = function ArraySpeciesCreate(originalArray, length) {
-	if (!IsInteger(length) || length < 0) {
+	if (!isInteger(length) || length < 0) {
 		throw new $TypeError('Assertion failed: length must be an integer >= 0');
@@ -21,0 +22,0 @@ }

2020/FlattenIntoArray.js

@@ -19,3 +19,2 @@ 'use strict';
 
-// eslint-disable-next-line max-params
 module.exports = function FlattenIntoArray(target, source, sourceLen, start, depth) {
@@ -22,0 +21,0 @@ var mapperFunction;

2020/GetSubstitution.js

@@ -22,3 +22,2 @@ 'use strict';
 var IsArray = require('./IsArray');
-var IsInteger = require('./IsInteger');
 var ToObject = require('./ToObject');
@@ -28,8 +27,5 @@ var ToString = require('./ToString');
 
-var canDistinguishSparseFromUndefined = 0 in [undefined]; // IE 6 - 8 have a bug where this returns false
+var isInteger = require('../helpers/isInteger');
+var isStringOrHole = require('../helpers/isStringOrHole');
 
-var isStringOrHole = function (capture, index, arr) {
-	return Type(capture) === 'String' || (canDistinguishSparseFromUndefined ? !(index in arr) : Type(capture) === 'Undefined');
-};
-
 // http://262.ecma-international.org/9.0/#sec-getsubstitution
@@ -49,3 +45,3 @@
 
-	if (!IsInteger(position) || position < 0 || position > stringLength) {
+	if (!isInteger(position) || position < 0 || position > stringLength) {
 		throw new $TypeError('Assertion failed: `position` must be a nonnegative integer, and less than or equal to the length of `string`, got ' + inspect(position));
@@ -52,0 +48,0 @@ }

2020/IsInteger.js

 'use strict';
 
-var abs = require('./abs');
-var floor = require('./floor');
+var isInteger = require('../helpers/isInteger');
 
-var $isNaN = require('../helpers/isNaN');
-var $isFinite = require('../helpers/isFinite');
-
 // https://262.ecma-international.org/6.0/#sec-isinteger
 
 module.exports = function IsInteger(argument) {
-	if (typeof argument !== 'number' || $isNaN(argument) || !$isFinite(argument)) {
-		return false;
-	}
-	var absValue = abs(argument);
-	return floor(absValue) === absValue;
+	return isInteger(argument);
 };

2020/NumberToBigInt.js

@@ -10,5 +10,6 @@ 'use strict';
 
-var IsInteger = require('./IsInteger');
 var Type = require('./Type');
 
+var isInteger = require('../helpers/isInteger');
+
 // https://262.ecma-international.org/11.0/#sec-numbertobigint
@@ -20,3 +21,3 @@
 	}
-	if (!IsInteger(number)) {
+	if (!isInteger(number)) {
 		throw new $RangeError('The number ' + number + ' cannot be converted to a BigInt because it is not an integer');
@@ -23,0 +24,0 @@ }

2020/NumericToRawBytes.js

@@ -5,23 +5,5 @@ 'use strict';
 
-var $floor = GetIntrinsic('%Math.floor%');
-var $log = GetIntrinsic('%Math.log%');
-var $log2E = GetIntrinsic('%Math.LOG2E%');
-var $log2 = GetIntrinsic('%Math.log2%', true) || function log2(x) {
-	return $log(x) * $log2E;
-};
-var $parseInt = GetIntrinsic('%parseInt%');
-var $pow = GetIntrinsic('%Math.pow%');
-var $Number = GetIntrinsic('%Number%');
 var $TypeError = GetIntrinsic('%TypeError%');
-var $BigInt = GetIntrinsic('%BigInt%', true);
 
-var callBound = require('call-bind/callBound');
-
-var $reverse = callBound('Array.prototype.reverse');
-var $numberToString = callBound('Number.prototype.toString');
-var $strSlice = callBound('String.prototype.slice');
-
-var abs = require('./abs');
 var hasOwnProperty = require('./HasOwnProperty');
-var SameValue = require('./SameValue');
 var ToBigInt64 = require('./ToBigInt64');
@@ -38,4 +20,5 @@ var ToBigUint64 = require('./ToBigUint64');
 
-var isNaN = require('../helpers/isNaN');
-var isFinite = require('../helpers/isFinite');
+var valueToFloat32Bytes = require('../helpers/valueToFloat32Bytes');
+var valueToFloat64Bytes = require('../helpers/valueToFloat64Bytes');
+var integerToNBytes = require('../helpers/integerToNBytes');
 
@@ -86,101 +69,6 @@ var keys = require('object-keys');
 
-	var rawBytes = [];
-	var exponent;
-
 	if (type === 'Float32') { // step 1
-		if (isNaN(value)) {
-			return isLittleEndian ? [0, 0, 192, 127] : [127, 192, 0, 0]; // hardcoded
-		}
-
-		var leastSig;
-
-		if (value === 0) {
-			leastSig = SameValue(value, -0) ? 0x80 : 0;
-			return isLittleEndian ? [0, 0, 0, leastSig] : [leastSig, 0, 0, 0];
-		}
-
-		if (!isFinite(value)) {
-			leastSig = value < 0 ? 255 : 127;
-			return isLittleEndian ? [0, 0, 128, leastSig] : [leastSig, 128, 0, 0];
-		}
-
-		var sign = value < 0 ? 1 : 0;
-		value = abs(value); // eslint-disable-line no-param-reassign
-
-		exponent = 0;
-		while (value >= 2) {
-			exponent += 1;
-			value /= 2; // eslint-disable-line no-param-reassign
-		}
-
-		while (value < 1) {
-			exponent -= 1;
-			value *= 2; // eslint-disable-line no-param-reassign
-		}
-
-		var mantissa = value - 1;
-		mantissa *= $pow(2, 23);
-		mantissa = $floor(mantissa);
-
-		exponent += 127;
-		exponent = exponent << 23;
-
-		var result = sign << 31;
-		result |= exponent;
-		result |= mantissa;
-
-		var byte0 = result & 255;
-		result = result >> 8;
-		var byte1 = result & 255;
-		result = result >> 8;
-		var byte2 = result & 255;
-		result = result >> 8;
-		var byte3 = result & 255;
-
-		if (isLittleEndian) {
-			return [byte0, byte1, byte2, byte3];
-		}
-		return [byte3, byte2, byte1, byte0];
+		return valueToFloat32Bytes(value, isLittleEndian);
 	} else if (type === 'Float64') { // step 2
-		if (value === 0) {
-			leastSig = Object.is(value, -0) ? 0x80 : 0;
-			return isLittleEndian ? [0, 0, 0, 0, 0, 0, 0, leastSig] : [leastSig, 0, 0, 0, 0, 0, 0, 0];
-		}
-		if (isNaN(value)) {
-			return isLittleEndian ? [0, 0, 0, 0, 0, 0, 248, 127] : [127, 248, 0, 0, 0, 0, 0, 0];
-		}
-		if (!isFinite(value)) {
-			var infBytes = value < 0 ? [0, 0, 0, 0, 0, 0, 240, 255] : [0, 0, 0, 0, 0, 0, 240, 127];
-			return isLittleEndian ? infBytes : $reverse(infBytes);
-		}
-
-		var isNegative = value < 0;
-		if (isNegative) { value = -value; } // eslint-disable-line no-param-reassign
-
-		exponent = $floor($log2(value));
-		var significand = (value / $pow(2, exponent)) - 1;
-
-		var bitString = '';
-		for (var i = 0; i < 52; i++) {
-			significand *= 2;
-			if (significand >= 1) {
-				bitString += '1';
-				significand -= 1;
-			} else {
-				bitString += '0';
-			}
-		}
-
-		exponent += 1023;
-		var exponentBits = $numberToString(exponent, 2);
-		while (exponentBits.length < 11) { exponentBits = '0' + exponentBits; }
-
-		var fullBitString = (isNegative ? '1' : '0') + exponentBits + bitString;
-		while (fullBitString.length < 64) { fullBitString = '0' + fullBitString; }
-
-		for (i = 0; i < 8; i++) {
-			rawBytes[i] = $parseInt($strSlice(fullBitString, i * 8, (i + 1) * 8), 2);
-		}
-
-		return isLittleEndian ? $reverse(rawBytes) : rawBytes;
+		return valueToFloat64Bytes(value, isLittleEndian);
 	} // step 3
@@ -194,21 +82,3 @@
 
-	var isBigInt = type === 'BigInt64' || type === 'BigUint64';
-	/*
-	if (intValue >= 0) { // step 3.d
-		// Let rawBytes be a List containing the n-byte binary encoding of intValue. If isLittleEndian is false, the bytes are ordered in big endian order. Otherwise, the bytes are ordered in little endian order.
-	} else { // step 3.e
-		// Let rawBytes be a List containing the n-byte binary 2's complement encoding of intValue. If isLittleEndian is false, the bytes are ordered in big endian order. Otherwise, the bytes are ordered in little endian order.
-	}
-    */
-	if (intValue < 0) {
-		intValue = intValue >>> 0;
-	}
-	var OxFF = isBigInt ? $BigInt(0xFF) : 0xFF;
-	var eight = isBigInt ? $BigInt(8) : 8;
-	for (i = 0; i < n; i++) {
-		rawBytes[isLittleEndian ? i : n - 1 - i] = $Number(intValue & OxFF);
-		intValue = intValue >> eight;
-	}
-
-	return rawBytes; // step 4
+	return integerToNBytes(intValue, n, isLittleEndian); // step 3.d, 3.e, 4
 };

2020/RawBytesToNumeric.js

@@ -6,7 +6,5 @@ 'use strict';
 
-var $pow = GetIntrinsic('%Math.pow%');
 var $RangeError = GetIntrinsic('%RangeError%');
 var $SyntaxError = GetIntrinsic('%SyntaxError%');
 var $TypeError = GetIntrinsic('%TypeError%');
-var $Number = GetIntrinsic('%Number%');
 var $BigInt = GetIntrinsic('%BigInt%', true);
@@ -20,2 +18,5 @@
 
+var bytesAsFloat32 = require('../helpers/bytesAsFloat32');
+var bytesAsFloat64 = require('../helpers/bytesAsFloat64');
+var bytesAsInteger = require('../helpers/bytesAsInteger');
 var every = require('../helpers/every');
@@ -77,94 +78,10 @@ var isByteValue = require('../helpers/isByteValue');
 	if (type === 'Float32') { // step 3
-		// return new Float32Array(new Uint8Array(rawBytes).buffer)[0];
-
-		/*
-        Let value be the byte elements of rawBytes concatenated and interpreted as a little-endian bit string encoding of an IEEE 754-2008 binary32 value.
-If value is an IEEE 754-2008 binary32 NaN value, return the NaN Number value.
-Return the Number value that corresponds to value.
-        */
-		var sign = rawBytes[3] & 0x80 ? -1 : 1; // Check the sign bit
-		var exponent = ((rawBytes[3] & 0x7F) << 1)
-			| (rawBytes[2] >> 7); // Combine bits for exponent
-		var mantissa = ((rawBytes[2] & 0x7F) << 16)
-			| (rawBytes[1] << 8)
-			| rawBytes[0]; // Combine bits for mantissa
-
-		if (exponent === 0 && mantissa === 0) {
-			return sign === 1 ? 0 : -0;
-		}
-		if (exponent === 0xFF && mantissa === 0) {
-			return sign === 1 ? Infinity : -Infinity;
-		}
-		if (exponent === 0xFF && mantissa !== 0) {
-			return NaN;
-		}
-
-		exponent -= 127; // subtract the bias
-
-		if (exponent === -127) {
-			return sign * mantissa * $pow(2, -126 - 23);
-		}
-		return sign * (1 + (mantissa * $pow(2, -23))) * $pow(2, exponent);
+		return bytesAsFloat32(rawBytes);
 	}
 
 	if (type === 'Float64') { // step 4
-		// return new Float64Array(new Uint8Array(rawBytes).buffer)[0];
-
-		/*
-        Let value be the byte elements of rawBytes concatenated and interpreted as a little-endian bit string encoding of an IEEE 754-2008 binary64 value.
-If value is an IEEE 754-2008 binary64 NaN value, return the NaN Number value.
-Return the Number value that corresponds to value.
-        */
-		var sign = rawBytes[7] & 0x80 ? -1 : 1; // first bit
-		var exponent = ((rawBytes[7] & 0x7F) << 4) // 7 bits from index 7
-			| ((rawBytes[6] & 0xF0) >> 4); // 4 bits from index 6
-		var mantissa = ((rawBytes[6] & 0x0F) * 0x1000000000000) // 4 bits from index 6
-			+ (rawBytes[5] * 0x10000000000) // 8 bits from index 5
-			+ (rawBytes[4] * 0x100000000) // 8 bits from index 4
-			+ (rawBytes[3] * 0x1000000) // 8 bits from index 3
-			+ (rawBytes[2] * 0x10000) // 8 bits from index 2
-			+ (rawBytes[1] * 0x100) // 8 bits from index 1
-			+ rawBytes[0]; // 8 bits from index 0
-
-		if (exponent === 0 && mantissa === 0) {
-			return sign * 0;
-		}
-		if (exponent === 0x7FF && mantissa !== 0) {
-			return NaN;
-		}
-		if (exponent === 0x7FF && mantissa === 0) {
-			return sign * Infinity;
-		}
-
-		exponent -= 1023; // subtract the bias
-
-		// Handle subnormal numbers
-		if (exponent === -1023) {
-			return sign * mantissa * 5e-324; // $pow(2, -1022 - 52)
-		}
-
-		return sign * (1 + (mantissa / 0x10000000000000)) * $pow(2, exponent);
+		return bytesAsFloat64(rawBytes);
 	}
 
-	var Z = isBigInt ? $BigInt : $Number;
-
-	// this is common to both branches
-	var intValue = Z(0);
-	for (var i = 0; i < rawBytes.length; i++) {
-		intValue += Z(rawBytes[i]) * Z($pow(2, 8 * i));
-	}
-	/*
-	Let intValue be the byte elements of rawBytes concatenated and interpreted as a bit string encoding of an unsigned little-endian binary number.
-	*/
-
-	if (!IsUnsignedElementType(type)) { // steps 5-6
-		// Let intValue be the byte elements of rawBytes concatenated and interpreted as a bit string encoding of a binary little-endian 2's complement number of bit length elementSize × 8.
-		var bitLength = elementSize * 8;
-
-		if (rawBytes[elementSize - 1] & 0x80) {
-			intValue -= Z($pow(2, bitLength));
-		}
-	}
-
-	return intValue; // step 7
+	return bytesAsInteger(rawBytes, elementSize, IsUnsignedElementType(type), isBigInt);
 };

2020/SplitMatch.js

@@ -8,5 +8,6 @@ 'use strict';
 
-var IsInteger = require('./IsInteger');
 var Type = require('./Type');
 
+var isInteger = require('../helpers/isInteger');
+
 var $charAt = callBound('String.prototype.charAt');
@@ -20,3 +21,3 @@
 	}
-	if (!IsInteger(q)) {
+	if (!isInteger(q)) {
 		throw new $TypeError('Assertion failed: `q` must be an integer');
@@ -23,0 +24,0 @@ }

2020/ValidateAndApplyPropertyDescriptor.js

@@ -22,3 +22,3 @@ 'use strict';
 
-// eslint-disable-next-line max-lines-per-function, max-statements, max-params
+// eslint-disable-next-line max-lines-per-function, max-statements
 module.exports = function ValidateAndApplyPropertyDescriptor(O, P, extensible, Desc, current) {
@@ -25,0 +25,0 @@ // this uses the ES2017+ logic, since it fixes a number of bugs in the ES2015 logic.

2021/AdvanceStringIndex.js

@@ -6,5 +6,5 @@ 'use strict';
 var CodePointAt = require('./CodePointAt');
-var IsIntegralNumber = require('./IsIntegralNumber');
 var Type = require('./Type');
 
+var isInteger = require('../helpers/isInteger');
 var MAX_SAFE_INTEGER = require('../helpers/maxSafeInteger');
@@ -20,3 +20,3 @@
 	}
-	if (!IsIntegralNumber(index) || index < 0 || index > MAX_SAFE_INTEGER) {
+	if (!isInteger(index) || index < 0 || index > MAX_SAFE_INTEGER) {
 		throw new $TypeError('Assertion failed: `length` must be an integer >= 0 and <= 2**53');
@@ -23,0 +23,0 @@ }

2021/ArrayCreate.js

@@ -10,3 +10,3 @@ 'use strict';
 
-var IsIntegralNumber = require('./IsIntegralNumber');
+var isInteger = require('../helpers/isInteger');
 
@@ -29,3 +29,3 @@ var MAX_ARRAY_LENGTH = Math.pow(2, 32) - 1;
 module.exports = function ArrayCreate(length) {
-	if (!IsIntegralNumber(length) || length < 0) {
+	if (!isInteger(length) || length < 0) {
 		throw new $TypeError('Assertion failed: `length` must be an integer Number >= 0');
@@ -32,0 +32,0 @@ }

2021/ArraySpeciesCreate.js

@@ -12,9 +12,10 @@ 'use strict';
 var IsConstructor = require('./IsConstructor');
-var IsIntegralNumber = require('./IsIntegralNumber');
 var Type = require('./Type');
 
+var isInteger = require('../helpers/isInteger');
+
 // https://262.ecma-international.org/12.0/#sec-arrayspeciescreate
 
 module.exports = function ArraySpeciesCreate(originalArray, length) {
-	if (!IsIntegralNumber(length) || length < 0) {
+	if (!isInteger(length) || length < 0) {
 		throw new $TypeError('Assertion failed: length must be an integer >= 0');
@@ -21,0 +22,0 @@ }

2021/FlattenIntoArray.js

@@ -19,3 +19,2 @@ 'use strict';
 
-// eslint-disable-next-line max-params
 module.exports = function FlattenIntoArray(target, source, sourceLen, start, depth) {
@@ -22,0 +21,0 @@ var mapperFunction;

2021/GetSubstitution.js

@@ -22,3 +22,2 @@ 'use strict';
 var IsArray = require('./IsArray');
-var IsIntegralNumber = require('./IsIntegralNumber');
 var ToObject = require('./ToObject');
@@ -28,8 +27,5 @@ var ToString = require('./ToString');
 
-var canDistinguishSparseFromUndefined = 0 in [undefined]; // IE 6 - 8 have a bug where this returns false
+var isInteger = require('../helpers/isInteger');
+var isStringOrHole = require('../helpers/isStringOrHole');
 
-var isStringOrHole = function (capture, index, arr) {
-	return Type(capture) === 'String' || (canDistinguishSparseFromUndefined ? !(index in arr) : Type(capture) === 'Undefined');
-};
-
 // http://www.ecma-international.org/ecma-262/12.0/#sec-getsubstitution
@@ -49,3 +45,3 @@
 
-	if (!IsIntegralNumber(position) || position < 0 || position > stringLength) {
+	if (!isInteger(position) || position < 0 || position > stringLength) {
 		throw new $TypeError('Assertion failed: `position` must be a nonnegative integer, and less than or equal to the length of `string`, got ' + inspect(position));
@@ -52,0 +48,0 @@ }

2021/IsIntegralNumber.js

 'use strict';
 
-var abs = require('./abs');
-var floor = require('./floor');
-var Type = require('./Type');
+var isInteger = require('../helpers/isInteger');
 
-var $isNaN = require('../helpers/isNaN');
-var $isFinite = require('../helpers/isFinite');
+// https://262.ecma-international.org/12.0/#sec-isinteger
 
-// https://tc39.es/ecma262/#sec-isintegralnumber
-
 module.exports = function IsIntegralNumber(argument) {
-	if (Type(argument) !== 'Number' || $isNaN(argument) || !$isFinite(argument)) {
-		return false;
-	}
-	var absValue = abs(argument);
-	return floor(absValue) === absValue;
+	return isInteger(argument);
 };

2021/NumericToRawBytes.js

@@ -5,23 +5,5 @@ 'use strict';
 
-var $floor = GetIntrinsic('%Math.floor%');
-var $log = GetIntrinsic('%Math.log%');
-var $log2E = GetIntrinsic('%Math.LOG2E%');
-var $log2 = GetIntrinsic('%Math.log2%', true) || function log2(x) {
-	return $log(x) * $log2E;
-};
-var $parseInt = GetIntrinsic('%parseInt%');
-var $pow = GetIntrinsic('%Math.pow%');
-var $Number = GetIntrinsic('%Number%');
 var $TypeError = GetIntrinsic('%TypeError%');
-var $BigInt = GetIntrinsic('%BigInt%', true);
 
-var callBound = require('call-bind/callBound');
-
-var $reverse = callBound('Array.prototype.reverse');
-var $numberToString = callBound('Number.prototype.toString');
-var $strSlice = callBound('String.prototype.slice');
-
-var abs = require('./abs');
 var hasOwnProperty = require('./HasOwnProperty');
-var SameValue = require('./SameValue');
 var ToBigInt64 = require('./ToBigInt64');
@@ -38,4 +20,5 @@ var ToBigUint64 = require('./ToBigUint64');
 
-var isNaN = require('../helpers/isNaN');
-var isFinite = require('../helpers/isFinite');
+var valueToFloat32Bytes = require('../helpers/valueToFloat32Bytes');
+var valueToFloat64Bytes = require('../helpers/valueToFloat64Bytes');
+var integerToNBytes = require('../helpers/integerToNBytes');
 
@@ -86,101 +69,6 @@ var keys = require('object-keys');
 
-	var rawBytes = [];
-	var exponent;
-
 	if (type === 'Float32') { // step 1
-		if (isNaN(value)) {
-			return isLittleEndian ? [0, 0, 192, 127] : [127, 192, 0, 0]; // hardcoded
-		}
-
-		var leastSig;
-
-		if (value === 0) {
-			leastSig = SameValue(value, -0) ? 0x80 : 0;
-			return isLittleEndian ? [0, 0, 0, leastSig] : [leastSig, 0, 0, 0];
-		}
-
-		if (!isFinite(value)) {
-			leastSig = value < 0 ? 255 : 127;
-			return isLittleEndian ? [0, 0, 128, leastSig] : [leastSig, 128, 0, 0];
-		}
-
-		var sign = value < 0 ? 1 : 0;
-		value = abs(value); // eslint-disable-line no-param-reassign
-
-		exponent = 0;
-		while (value >= 2) {
-			exponent += 1;
-			value /= 2; // eslint-disable-line no-param-reassign
-		}
-
-		while (value < 1) {
-			exponent -= 1;
-			value *= 2; // eslint-disable-line no-param-reassign
-		}
-
-		var mantissa = value - 1;
-		mantissa *= $pow(2, 23);
-		mantissa = $floor(mantissa);
-
-		exponent += 127;
-		exponent = exponent << 23;
-
-		var result = sign << 31;
-		result |= exponent;
-		result |= mantissa;
-
-		var byte0 = result & 255;
-		result = result >> 8;
-		var byte1 = result & 255;
-		result = result >> 8;
-		var byte2 = result & 255;
-		result = result >> 8;
-		var byte3 = result & 255;
-
-		if (isLittleEndian) {
-			return [byte0, byte1, byte2, byte3];
-		}
-		return [byte3, byte2, byte1, byte0];
+		return valueToFloat32Bytes(value, isLittleEndian);
 	} else if (type === 'Float64') { // step 2
-		if (value === 0) {
-			leastSig = Object.is(value, -0) ? 0x80 : 0;
-			return isLittleEndian ? [0, 0, 0, 0, 0, 0, 0, leastSig] : [leastSig, 0, 0, 0, 0, 0, 0, 0];
-		}
-		if (isNaN(value)) {
-			return isLittleEndian ? [0, 0, 0, 0, 0, 0, 248, 127] : [127, 248, 0, 0, 0, 0, 0, 0];
-		}
-		if (!isFinite(value)) {
-			var infBytes = value < 0 ? [0, 0, 0, 0, 0, 0, 240, 255] : [0, 0, 0, 0, 0, 0, 240, 127];
-			return isLittleEndian ? infBytes : $reverse(infBytes);
-		}
-
-		var isNegative = value < 0;
-		if (isNegative) { value = -value; } // eslint-disable-line no-param-reassign
-
-		exponent = $floor($log2(value));
-		var significand = (value / $pow(2, exponent)) - 1;
-
-		var bitString = '';
-		for (var i = 0; i < 52; i++) {
-			significand *= 2;
-			if (significand >= 1) {
-				bitString += '1';
-				significand -= 1;
-			} else {
-				bitString += '0';
-			}
-		}
-
-		exponent += 1023;
-		var exponentBits = $numberToString(exponent, 2);
-		while (exponentBits.length < 11) { exponentBits = '0' + exponentBits; }
-
-		var fullBitString = (isNegative ? '1' : '0') + exponentBits + bitString;
-		while (fullBitString.length < 64) { fullBitString = '0' + fullBitString; }
-
-		for (i = 0; i < 8; i++) {
-			rawBytes[i] = $parseInt($strSlice(fullBitString, i * 8, (i + 1) * 8), 2);
-		}
-
-		return isLittleEndian ? $reverse(rawBytes) : rawBytes;
+		return valueToFloat64Bytes(value, isLittleEndian);
 	} // step 3
@@ -194,21 +82,3 @@
 
-	var isBigInt = type === 'BigInt64' || type === 'BigUint64';
-	/*
-	if (intValue >= 0) { // step 3.d
-		// Let rawBytes be a List containing the n-byte binary encoding of intValue. If isLittleEndian is false, the bytes are ordered in big endian order. Otherwise, the bytes are ordered in little endian order.
-	} else { // step 3.e
-		// Let rawBytes be a List containing the n-byte binary 2's complement encoding of intValue. If isLittleEndian is false, the bytes are ordered in big endian order. Otherwise, the bytes are ordered in little endian order.
-	}
-    */
-	if (intValue < 0) {
-		intValue = intValue >>> 0;
-	}
-	var OxFF = isBigInt ? $BigInt(0xFF) : 0xFF;
-	var eight = isBigInt ? $BigInt(8) : 8;
-	for (i = 0; i < n; i++) {
-		rawBytes[isLittleEndian ? i : n - 1 - i] = $Number(intValue & OxFF);
-		intValue = intValue >> eight;
-	}
-
-	return rawBytes; // step 4
+	return integerToNBytes(intValue, n, isLittleEndian); // step 3.d, 3.e, 4
 };

2021/RawBytesToNumeric.js

@@ -6,7 +6,5 @@ 'use strict';
 
-var $pow = GetIntrinsic('%Math.pow%');
 var $RangeError = GetIntrinsic('%RangeError%');
 var $SyntaxError = GetIntrinsic('%SyntaxError%');
 var $TypeError = GetIntrinsic('%TypeError%');
-var $Number = GetIntrinsic('%Number%');
 var $BigInt = GetIntrinsic('%BigInt%', true);
@@ -20,2 +18,5 @@
 
+var bytesAsFloat32 = require('../helpers/bytesAsFloat32');
+var bytesAsFloat64 = require('../helpers/bytesAsFloat64');
+var bytesAsInteger = require('../helpers/bytesAsInteger');
 var every = require('../helpers/every');
@@ -77,94 +78,10 @@ var isByteValue = require('../helpers/isByteValue');
 	if (type === 'Float32') { // step 3
-		// return new Float32Array(new Uint8Array(rawBytes).buffer)[0];
-
-		/*
-        Let value be the byte elements of rawBytes concatenated and interpreted as a little-endian bit string encoding of an IEEE 754-2008 binary32 value.
-If value is an IEEE 754-2008 binary32 NaN value, return the NaN Number value.
-Return the Number value that corresponds to value.
-        */
-		var sign = rawBytes[3] & 0x80 ? -1 : 1; // Check the sign bit
-		var exponent = ((rawBytes[3] & 0x7F) << 1)
-			| (rawBytes[2] >> 7); // Combine bits for exponent
-		var mantissa = ((rawBytes[2] & 0x7F) << 16)
-			| (rawBytes[1] << 8)
-			| rawBytes[0]; // Combine bits for mantissa
-
-		if (exponent === 0 && mantissa === 0) {
-			return sign === 1 ? 0 : -0;
-		}
-		if (exponent === 0xFF && mantissa === 0) {
-			return sign === 1 ? Infinity : -Infinity;
-		}
-		if (exponent === 0xFF && mantissa !== 0) {
-			return NaN;
-		}
-
-		exponent -= 127; // subtract the bias
-
-		if (exponent === -127) {
-			return sign * mantissa * $pow(2, -126 - 23);
-		}
-		return sign * (1 + (mantissa * $pow(2, -23))) * $pow(2, exponent);
+		return bytesAsFloat32(rawBytes);
 	}
 
 	if (type === 'Float64') { // step 4
-		// return new Float64Array(new Uint8Array(rawBytes).buffer)[0];
-
-		/*
-        Let value be the byte elements of rawBytes concatenated and interpreted as a little-endian bit string encoding of an IEEE 754-2008 binary64 value.
-If value is an IEEE 754-2008 binary64 NaN value, return the NaN Number value.
-Return the Number value that corresponds to value.
-        */
-		var sign = rawBytes[7] & 0x80 ? -1 : 1; // first bit
-		var exponent = ((rawBytes[7] & 0x7F) << 4) // 7 bits from index 7
-			| ((rawBytes[6] & 0xF0) >> 4); // 4 bits from index 6
-		var mantissa = ((rawBytes[6] & 0x0F) * 0x1000000000000) // 4 bits from index 6
-			+ (rawBytes[5] * 0x10000000000) // 8 bits from index 5
-			+ (rawBytes[4] * 0x100000000) // 8 bits from index 4
-			+ (rawBytes[3] * 0x1000000) // 8 bits from index 3
-			+ (rawBytes[2] * 0x10000) // 8 bits from index 2
-			+ (rawBytes[1] * 0x100) // 8 bits from index 1
-			+ rawBytes[0]; // 8 bits from index 0
-
-		if (exponent === 0 && mantissa === 0) {
-			return sign * 0;
-		}
-		if (exponent === 0x7FF && mantissa !== 0) {
-			return NaN;
-		}
-		if (exponent === 0x7FF && mantissa === 0) {
-			return sign * Infinity;
-		}
-
-		exponent -= 1023; // subtract the bias
-
-		// Handle subnormal numbers
-		if (exponent === -1023) {
-			return sign * mantissa * 5e-324; // $pow(2, -1022 - 52)
-		}
-
-		return sign * (1 + (mantissa / 0x10000000000000)) * $pow(2, exponent);
+		return bytesAsFloat64(rawBytes);
 	}
 
-	var Z = isBigInt ? $BigInt : $Number;
-
-	// this is common to both branches
-	var intValue = Z(0);
-	for (var i = 0; i < rawBytes.length; i++) {
-		intValue += Z(rawBytes[i]) * Z($pow(2, 8 * i));
-	}
-	/*
-	Let intValue be the byte elements of rawBytes concatenated and interpreted as a bit string encoding of an unsigned little-endian binary number.
-	*/
-
-	if (!IsUnsignedElementType(type)) { // steps 5-6
-		// Let intValue be the byte elements of rawBytes concatenated and interpreted as a bit string encoding of a binary little-endian 2's complement number of bit length elementSize × 8.
-		var bitLength = elementSize * 8;
-
-		if (rawBytes[elementSize - 1] & 0x80) {
-			intValue -= Z($pow(2, bitLength));
-		}
-	}
-
-	return intValue; // step 7
+	return bytesAsInteger(rawBytes, elementSize, IsUnsignedElementType(type), isBigInt);
 };

2021/SetFunctionLength.js

@@ -10,5 +10,6 @@ 'use strict';
 var IsExtensible = require('./IsExtensible');
-var IsIntegralNumber = require('./IsIntegralNumber');
 var Type = require('./Type');
 
+var isInteger = require('../helpers/isInteger');
+
 // https://262.ecma-international.org/12.0/#sec-setfunctionlength
@@ -23,3 +24,3 @@
 	}
-	if (length !== Infinity && (!IsIntegralNumber(length) || length < 0)) {
+	if (length !== Infinity && (!isInteger(length) || length < 0)) {
 		throw new $TypeError('Assertion failed: `length` must be ∞, or an integer >= 0');
@@ -26,0 +27,0 @@ }

2021/SplitMatch.js

@@ -8,5 +8,6 @@ 'use strict';
 
-var IsIntegralNumber = require('./IsIntegralNumber');
 var Type = require('./Type');
 
+var isInteger = require('../helpers/isInteger');
+
 var $charAt = callBound('String.prototype.charAt');
@@ -20,3 +21,3 @@
 	}
-	if (!IsIntegralNumber(q)) {
+	if (!isInteger(q)) {
 		throw new $TypeError('Assertion failed: `q` must be an integer');
@@ -23,0 +24,0 @@ }

2021/StringIndexOf.js

@@ -8,5 +8,6 @@ 'use strict';
 
-var IsIntegralNumber = require('./IsIntegralNumber');
 var Type = require('./Type');
 
+var isInteger = require('../helpers/isInteger');
+
 var $slice = callBound('String.prototype.slice');
@@ -23,3 +24,3 @@
 	}
-	if (!IsIntegralNumber(fromIndex) || fromIndex < 0) {
+	if (!isInteger(fromIndex) || fromIndex < 0) {
 		throw new $TypeError('Assertion failed: `fromIndex` must be a non-negative integer');
@@ -26,0 +27,0 @@ }

2021/substring.js

@@ -7,5 +7,6 @@ 'use strict';
 
-var IsIntegralNumber = require('./IsIntegralNumber');
 var Type = require('./Type');
 
+var isInteger = require('../helpers/isInteger');
+
 var callBound = require('call-bind/callBound');
@@ -17,3 +18,3 @@
 module.exports = function substring(S, inclusiveStart, exclusiveEnd) {
-	if (Type(S) !== 'String' || !IsIntegralNumber(inclusiveStart) || (arguments.length > 2 && !IsIntegralNumber(exclusiveEnd))) {
+	if (Type(S) !== 'String' || !isInteger(inclusiveStart) || (arguments.length > 2 && !isInteger(exclusiveEnd))) {
 		throw new $TypeError('`S` must be a String, and `inclusiveStart` and `exclusiveEnd` must be integers');
@@ -20,0 +21,0 @@ }

2021/ValidateAndApplyPropertyDescriptor.js

@@ -22,3 +22,3 @@ 'use strict';
 
-// eslint-disable-next-line max-lines-per-function, max-statements, max-params
+// eslint-disable-next-line max-lines-per-function, max-statements
 module.exports = function ValidateAndApplyPropertyDescriptor(O, P, extensible, Desc, current) {
@@ -25,0 +25,0 @@ // this uses the ES2017+ logic, since it fixes a number of bugs in the ES2015 logic.

2022/AdvanceStringIndex.js

@@ -6,5 +6,5 @@ 'use strict';
 var CodePointAt = require('./CodePointAt');
-var IsIntegralNumber = require('./IsIntegralNumber');
 var Type = require('./Type');
 
+var isInteger = require('../helpers/isInteger');
 var MAX_SAFE_INTEGER = require('../helpers/maxSafeInteger');
@@ -20,3 +20,3 @@
 	}
-	if (!IsIntegralNumber(index) || index < 0 || index > MAX_SAFE_INTEGER) {
+	if (!isInteger(index) || index < 0 || index > MAX_SAFE_INTEGER) {
 		throw new $TypeError('Assertion failed: `length` must be an integer >= 0 and <= 2**53');
@@ -23,0 +23,0 @@ }

2022/ArrayCreate.js

@@ -10,3 +10,3 @@ 'use strict';
 
-var IsIntegralNumber = require('./IsIntegralNumber');
+var isInteger = require('../helpers/isInteger');
 
@@ -29,3 +29,3 @@ var MAX_ARRAY_LENGTH = Math.pow(2, 32) - 1;
 module.exports = function ArrayCreate(length) {
-	if (!IsIntegralNumber(length) || length < 0) {
+	if (!isInteger(length) || length < 0) {
 		throw new $TypeError('Assertion failed: `length` must be an integer Number >= 0');
@@ -32,0 +32,0 @@ }

2022/ArraySpeciesCreate.js

@@ -12,9 +12,10 @@ 'use strict';
 var IsConstructor = require('./IsConstructor');
-var IsIntegralNumber = require('./IsIntegralNumber');
 var Type = require('./Type');
 
+var isInteger = require('../helpers/isInteger');
+
 // https://262.ecma-international.org/12.0/#sec-arrayspeciescreate
 
 module.exports = function ArraySpeciesCreate(originalArray, length) {
-	if (!IsIntegralNumber(length) || length < 0) {
+	if (!isInteger(length) || length < 0) {
 		throw new $TypeError('Assertion failed: length must be an integer >= 0');
@@ -21,0 +22,0 @@ }

2022/FlattenIntoArray.js

@@ -19,3 +19,2 @@ 'use strict';
 
-// eslint-disable-next-line max-params
 module.exports = function FlattenIntoArray(target, source, sourceLen, start, depth) {
@@ -22,0 +21,0 @@ var mapperFunction;

2022/GetStringIndex.js

@@ -8,6 +8,7 @@ 'use strict';
 
-var IsIntegralNumber = require('./IsIntegralNumber');
 var StringToCodePoints = require('./StringToCodePoints');
 var Type = require('./Type');
 
+var isInteger = require('../helpers/isInteger');
+
 var $indexOf = callBound('String.prototype.indexOf');
@@ -21,3 +22,3 @@
 	}
-	if (!IsIntegralNumber(e) || e < 0) {
+	if (!isInteger(e) || e < 0) {
 		throw new $TypeError('Assertion failed: `e` must be a non-negative integer');
@@ -24,0 +25,0 @@ }

2022/GetSubstitution.js

@@ -22,3 +22,2 @@ 'use strict';
 var IsArray = require('./IsArray');
-var IsIntegralNumber = require('./IsIntegralNumber');
 var ToObject = require('./ToObject');
@@ -28,8 +27,5 @@ var ToString = require('./ToString');
 
-var canDistinguishSparseFromUndefined = 0 in [undefined]; // IE 6 - 8 have a bug where this returns false
+var isInteger = require('../helpers/isInteger');
+var isStringOrHole = require('../helpers/isStringOrHole');
 
-var isStringOrHole = function (capture, index, arr) {
-	return Type(capture) === 'String' || (canDistinguishSparseFromUndefined ? !(index in arr) : Type(capture) === 'Undefined');
-};
-
 // http://www.ecma-international.org/ecma-262/12.0/#sec-getsubstitution
@@ -49,3 +45,3 @@
 
-	if (!IsIntegralNumber(position) || position < 0 || position > stringLength) {
+	if (!isInteger(position) || position < 0 || position > stringLength) {
 		throw new $TypeError('Assertion failed: `position` must be a nonnegative integer, and less than or equal to the length of `string`, got ' + inspect(position));
@@ -52,0 +48,0 @@ }

2022/IsIntegralNumber.js

 'use strict';
 
-var abs = require('./abs');
-var floor = require('./floor');
-var Type = require('./Type');
+var isInteger = require('../helpers/isInteger');
 
-var $isNaN = require('../helpers/isNaN');
-var $isFinite = require('../helpers/isFinite');
+// https://262.ecma-international.org/12.0/#sec-isinteger
 
-// https://tc39.es/ecma262/#sec-isintegralnumber
-
 module.exports = function IsIntegralNumber(argument) {
-	if (Type(argument) !== 'Number' || $isNaN(argument) || !$isFinite(argument)) {
-		return false;
-	}
-	var absValue = abs(argument);
-	return floor(absValue) === absValue;
+	return isInteger(argument);
 };

2022/NumericToRawBytes.js

@@ -5,23 +5,5 @@ 'use strict';
 
-var $floor = GetIntrinsic('%Math.floor%');
-var $log = GetIntrinsic('%Math.log%');
-var $log2E = GetIntrinsic('%Math.LOG2E%');
-var $log2 = GetIntrinsic('%Math.log2%', true) || function log2(x) {
-	return $log(x) * $log2E;
-};
-var $parseInt = GetIntrinsic('%parseInt%');
-var $pow = GetIntrinsic('%Math.pow%');
-var $Number = GetIntrinsic('%Number%');
 var $TypeError = GetIntrinsic('%TypeError%');
-var $BigInt = GetIntrinsic('%BigInt%', true);
 
-var callBound = require('call-bind/callBound');
-
-var $reverse = callBound('Array.prototype.reverse');
-var $numberToString = callBound('Number.prototype.toString');
-var $strSlice = callBound('String.prototype.slice');
-
-var abs = require('./abs');
 var hasOwnProperty = require('./HasOwnProperty');
-var SameValue = require('./SameValue');
 var ToBigInt64 = require('./ToBigInt64');
@@ -38,4 +20,5 @@ var ToBigUint64 = require('./ToBigUint64');
 
-var isNaN = require('../helpers/isNaN');
-var isFinite = require('../helpers/isFinite');
+var valueToFloat32Bytes = require('../helpers/valueToFloat32Bytes');
+var valueToFloat64Bytes = require('../helpers/valueToFloat64Bytes');
+var integerToNBytes = require('../helpers/integerToNBytes');
 
@@ -86,101 +69,6 @@ var keys = require('object-keys');
 
-	var rawBytes = [];
-	var exponent;
-
 	if (type === 'Float32') { // step 1
-		if (isNaN(value)) {
-			return isLittleEndian ? [0, 0, 192, 127] : [127, 192, 0, 0]; // hardcoded
-		}
-
-		var leastSig;
-
-		if (value === 0) {
-			leastSig = SameValue(value, -0) ? 0x80 : 0;
-			return isLittleEndian ? [0, 0, 0, leastSig] : [leastSig, 0, 0, 0];
-		}
-
-		if (!isFinite(value)) {
-			leastSig = value < 0 ? 255 : 127;
-			return isLittleEndian ? [0, 0, 128, leastSig] : [leastSig, 128, 0, 0];
-		}
-
-		var sign = value < 0 ? 1 : 0;
-		value = abs(value); // eslint-disable-line no-param-reassign
-
-		exponent = 0;
-		while (value >= 2) {
-			exponent += 1;
-			value /= 2; // eslint-disable-line no-param-reassign
-		}
-
-		while (value < 1) {
-			exponent -= 1;
-			value *= 2; // eslint-disable-line no-param-reassign
-		}
-
-		var mantissa = value - 1;
-		mantissa *= $pow(2, 23);
-		mantissa = $floor(mantissa);
-
-		exponent += 127;
-		exponent = exponent << 23;
-
-		var result = sign << 31;
-		result |= exponent;
-		result |= mantissa;
-
-		var byte0 = result & 255;
-		result = result >> 8;
-		var byte1 = result & 255;
-		result = result >> 8;
-		var byte2 = result & 255;
-		result = result >> 8;
-		var byte3 = result & 255;
-
-		if (isLittleEndian) {
-			return [byte0, byte1, byte2, byte3];
-		}
-		return [byte3, byte2, byte1, byte0];
+		return valueToFloat32Bytes(value, isLittleEndian);
 	} else if (type === 'Float64') { // step 2
-		if (value === 0) {
-			leastSig = Object.is(value, -0) ? 0x80 : 0;
-			return isLittleEndian ? [0, 0, 0, 0, 0, 0, 0, leastSig] : [leastSig, 0, 0, 0, 0, 0, 0, 0];
-		}
-		if (isNaN(value)) {
-			return isLittleEndian ? [0, 0, 0, 0, 0, 0, 248, 127] : [127, 248, 0, 0, 0, 0, 0, 0];
-		}
-		if (!isFinite(value)) {
-			var infBytes = value < 0 ? [0, 0, 0, 0, 0, 0, 240, 255] : [0, 0, 0, 0, 0, 0, 240, 127];
-			return isLittleEndian ? infBytes : $reverse(infBytes);
-		}
-
-		var isNegative = value < 0;
-		if (isNegative) { value = -value; } // eslint-disable-line no-param-reassign
-
-		exponent = $floor($log2(value));
-		var significand = (value / $pow(2, exponent)) - 1;
-
-		var bitString = '';
-		for (var i = 0; i < 52; i++) {
-			significand *= 2;
-			if (significand >= 1) {
-				bitString += '1';
-				significand -= 1;
-			} else {
-				bitString += '0';
-			}
-		}
-
-		exponent += 1023;
-		var exponentBits = $numberToString(exponent, 2);
-		while (exponentBits.length < 11) { exponentBits = '0' + exponentBits; }
-
-		var fullBitString = (isNegative ? '1' : '0') + exponentBits + bitString;
-		while (fullBitString.length < 64) { fullBitString = '0' + fullBitString; }
-
-		for (i = 0; i < 8; i++) {
-			rawBytes[i] = $parseInt($strSlice(fullBitString, i * 8, (i + 1) * 8), 2);
-		}
-
-		return isLittleEndian ? $reverse(rawBytes) : rawBytes;
+		return valueToFloat64Bytes(value, isLittleEndian);
 	} // step 3
@@ -194,21 +82,3 @@
 
-	var isBigInt = type === 'BigInt64' || type === 'BigUint64';
-	/*
-	if (intValue >= 0) { // step 3.d
-		// Let rawBytes be a List containing the n-byte binary encoding of intValue. If isLittleEndian is false, the bytes are ordered in big endian order. Otherwise, the bytes are ordered in little endian order.
-	} else { // step 3.e
-		// Let rawBytes be a List containing the n-byte binary 2's complement encoding of intValue. If isLittleEndian is false, the bytes are ordered in big endian order. Otherwise, the bytes are ordered in little endian order.
-	}
-    */
-	if (intValue < 0) {
-		intValue = intValue >>> 0;
-	}
-	var OxFF = isBigInt ? $BigInt(0xFF) : 0xFF;
-	var eight = isBigInt ? $BigInt(8) : 8;
-	for (i = 0; i < n; i++) {
-		rawBytes[isLittleEndian ? i : n - 1 - i] = $Number(intValue & OxFF);
-		intValue = intValue >> eight;
-	}
-
-	return rawBytes; // step 4
+	return integerToNBytes(intValue, n, isLittleEndian); // step 3.d, 3.e, 4
 };

2022/RawBytesToNumeric.js

@@ -6,7 +6,5 @@ 'use strict';
 
-var $pow = GetIntrinsic('%Math.pow%');
 var $RangeError = GetIntrinsic('%RangeError%');
 var $SyntaxError = GetIntrinsic('%SyntaxError%');
 var $TypeError = GetIntrinsic('%TypeError%');
-var $Number = GetIntrinsic('%Number%');
 var $BigInt = GetIntrinsic('%BigInt%', true);
@@ -20,2 +18,5 @@
 
+var bytesAsFloat32 = require('../helpers/bytesAsFloat32');
+var bytesAsFloat64 = require('../helpers/bytesAsFloat64');
+var bytesAsInteger = require('../helpers/bytesAsInteger');
 var every = require('../helpers/every');
@@ -77,94 +78,10 @@ var isByteValue = require('../helpers/isByteValue');
 	if (type === 'Float32') { // step 3
-		// return new Float32Array(new Uint8Array(rawBytes).buffer)[0];
-
-		/*
-        Let value be the byte elements of rawBytes concatenated and interpreted as a little-endian bit string encoding of an IEEE 754-2008 binary32 value.
-If value is an IEEE 754-2008 binary32 NaN value, return the NaN Number value.
-Return the Number value that corresponds to value.
-        */
-		var sign = rawBytes[3] & 0x80 ? -1 : 1; // Check the sign bit
-		var exponent = ((rawBytes[3] & 0x7F) << 1)
-			| (rawBytes[2] >> 7); // Combine bits for exponent
-		var mantissa = ((rawBytes[2] & 0x7F) << 16)
-			| (rawBytes[1] << 8)
-			| rawBytes[0]; // Combine bits for mantissa
-
-		if (exponent === 0 && mantissa === 0) {
-			return sign === 1 ? 0 : -0;
-		}
-		if (exponent === 0xFF && mantissa === 0) {
-			return sign === 1 ? Infinity : -Infinity;
-		}
-		if (exponent === 0xFF && mantissa !== 0) {
-			return NaN;
-		}
-
-		exponent -= 127; // subtract the bias
-
-		if (exponent === -127) {
-			return sign * mantissa * $pow(2, -126 - 23);
-		}
-		return sign * (1 + (mantissa * $pow(2, -23))) * $pow(2, exponent);
+		return bytesAsFloat32(rawBytes);
 	}
 
 	if (type === 'Float64') { // step 4
-		// return new Float64Array(new Uint8Array(rawBytes).buffer)[0];
-
-		/*
-        Let value be the byte elements of rawBytes concatenated and interpreted as a little-endian bit string encoding of an IEEE 754-2008 binary64 value.
-If value is an IEEE 754-2008 binary64 NaN value, return the NaN Number value.
-Return the Number value that corresponds to value.
-        */
-		var sign = rawBytes[7] & 0x80 ? -1 : 1; // first bit
-		var exponent = ((rawBytes[7] & 0x7F) << 4) // 7 bits from index 7
-			| ((rawBytes[6] & 0xF0) >> 4); // 4 bits from index 6
-		var mantissa = ((rawBytes[6] & 0x0F) * 0x1000000000000) // 4 bits from index 6
-			+ (rawBytes[5] * 0x10000000000) // 8 bits from index 5
-			+ (rawBytes[4] * 0x100000000) // 8 bits from index 4
-			+ (rawBytes[3] * 0x1000000) // 8 bits from index 3
-			+ (rawBytes[2] * 0x10000) // 8 bits from index 2
-			+ (rawBytes[1] * 0x100) // 8 bits from index 1
-			+ rawBytes[0]; // 8 bits from index 0
-
-		if (exponent === 0 && mantissa === 0) {
-			return sign * 0;
-		}
-		if (exponent === 0x7FF && mantissa !== 0) {
-			return NaN;
-		}
-		if (exponent === 0x7FF && mantissa === 0) {
-			return sign * Infinity;
-		}
-
-		exponent -= 1023; // subtract the bias
-
-		// Handle subnormal numbers
-		if (exponent === -1023) {
-			return sign * mantissa * 5e-324; // $pow(2, -1022 - 52)
-		}
-
-		return sign * (1 + (mantissa / 0x10000000000000)) * $pow(2, exponent);
+		return bytesAsFloat64(rawBytes);
 	}
 
-	var Z = isBigInt ? $BigInt : $Number;
-
-	// this is common to both branches
-	var intValue = Z(0);
-	for (var i = 0; i < rawBytes.length; i++) {
-		intValue += Z(rawBytes[i]) * Z($pow(2, 8 * i));
-	}
-	/*
-	Let intValue be the byte elements of rawBytes concatenated and interpreted as a bit string encoding of an unsigned little-endian binary number.
-	*/
-
-	if (!IsUnsignedElementType(type)) { // steps 5-6
-		// Let intValue be the byte elements of rawBytes concatenated and interpreted as a bit string encoding of a binary little-endian 2's complement number of bit length elementSize × 8.
-		var bitLength = elementSize * 8;
-
-		if (rawBytes[elementSize - 1] & 0x80) {
-			intValue -= Z($pow(2, bitLength));
-		}
-	}
-
-	return intValue; // step 7
+	return bytesAsInteger(rawBytes, elementSize, IsUnsignedElementType(type), isBigInt);
 };

2022/SetFunctionLength.js

@@ -10,5 +10,6 @@ 'use strict';
 var IsExtensible = require('./IsExtensible');
-var IsIntegralNumber = require('./IsIntegralNumber');
 var Type = require('./Type');
 
+var isInteger = require('../helpers/isInteger');
+
 // https://262.ecma-international.org/12.0/#sec-setfunctionlength
@@ -23,3 +24,3 @@
 	}
-	if (length !== Infinity && (!IsIntegralNumber(length) || length < 0)) {
+	if (length !== Infinity && (!isInteger(length) || length < 0)) {
 		throw new $TypeError('Assertion failed: `length` must be ∞, or an integer >= 0');
@@ -26,0 +27,0 @@ }

2022/SortIndexedProperties.js

@@ -11,3 +11,2 @@ 'use strict';
 var HasProperty = require('./HasProperty');
-var IsIntegralNumber = require('./IsIntegralNumber');
 var Set = require('./Set');
@@ -18,2 +17,3 @@ var ToString = require('./ToString');
 var isAbstractClosure = require('../helpers/isAbstractClosure');
+var isInteger = require('../helpers/isInteger');
 
@@ -29,3 +29,3 @@ var $push = callBound('Array.prototype.push');
 	}
-	if (!IsIntegralNumber(len) || len < 0) {
+	if (!isInteger(len) || len < 0) {
 		throw new $TypeError('Assertion failed: `len` must be an integer >= 0');
@@ -32,0 +32,0 @@ }

2022/StringIndexOf.js

@@ -8,5 +8,6 @@ 'use strict';
 
-var IsIntegralNumber = require('./IsIntegralNumber');
 var Type = require('./Type');
 
+var isInteger = require('../helpers/isInteger');
+
 var $slice = callBound('String.prototype.slice');
@@ -23,3 +24,3 @@
 	}
-	if (!IsIntegralNumber(fromIndex) || fromIndex < 0) {
+	if (!isInteger(fromIndex) || fromIndex < 0) {
 		throw new $TypeError('Assertion failed: `fromIndex` must be a non-negative integer');
@@ -26,0 +27,0 @@ }

2022/substring.js

@@ -7,5 +7,6 @@ 'use strict';
 
-var IsIntegralNumber = require('./IsIntegralNumber');
 var Type = require('./Type');
 
+var isInteger = require('../helpers/isInteger');
+
 var callBound = require('call-bind/callBound');
@@ -17,3 +18,3 @@
 module.exports = function substring(S, inclusiveStart, exclusiveEnd) {
-	if (Type(S) !== 'String' || !IsIntegralNumber(inclusiveStart) || (arguments.length > 2 && !IsIntegralNumber(exclusiveEnd))) {
+	if (Type(S) !== 'String' || !isInteger(inclusiveStart) || (arguments.length > 2 && !isInteger(exclusiveEnd))) {
 		throw new $TypeError('`S` must be a String, and `inclusiveStart` and `exclusiveEnd` must be integers');
@@ -20,0 +21,0 @@ }

2022/ToZeroPaddedDecimalString.js

@@ -8,9 +8,10 @@ 'use strict';
 
-var IsIntegralNumber = require('./IsIntegralNumber');
 var StringPad = require('./StringPad');
 
+var isInteger = require('../helpers/isInteger');
+
 // https://262.ecma-international.org/13.0/#sec-tozeropaddeddecimalstring
 
 module.exports = function ToZeroPaddedDecimalString(n, minLength) {
-	if (!IsIntegralNumber(n) || n < 0) {
+	if (!isInteger(n) || n < 0) {
 		throw new $RangeError('Assertion failed: `q` must be a non-negative integer');
@@ -17,0 +18,0 @@ }

2022/TypedArrayElementSize.js

@@ -8,3 +8,3 @@ 'use strict';
 
-var IsIntegralNumber = require('./IsIntegralNumber');
+var isInteger = require('../helpers/isInteger');
 
@@ -36,3 +36,3 @@ var whichTypedArray = require('which-typed-array');
 	var size = table71['$' + type];
-	if (!IsIntegralNumber(size) || size < 0) {
+	if (!isInteger(size) || size < 0) {
 		throw new $SyntaxError('Assertion failed: Unknown TypedArray type `' + type + '`');
@@ -39,0 +39,0 @@ }

2022/ValidateAndApplyPropertyDescriptor.js

@@ -23,3 +23,3 @@ 'use strict';
 
-// eslint-disable-next-line max-lines-per-function, max-statements, max-params
+// eslint-disable-next-line max-lines-per-function, max-statements
 module.exports = function ValidateAndApplyPropertyDescriptor(O, P, extensible, Desc, current) {
@@ -26,0 +26,0 @@ var oType = Type(O);

CHANGELOG.md

@@ -0,1 +1,22 @@
+1.22.0 / 2023-07-15
+=================
+  * [New] add `ES2023`
+  * [New] `ES2021+`: add `SetTypedArrayFromArrayLike`, `SetTypedArrayFromTypedArray`
+  * [New] `ES2021`+: add `CloneArrayBuffer`
+  * [New] `ES2020`+: add `IsValidIntegerIndex`
+  * [New] `ES2015`+: add `GetValueFromBuffer`, `SetValueInBuffer`
+  * [New] `ES2016`+: add `TypedArrayCreate`, `TypedArraySpeciesCreate`
+  * [New] `ES2015`+: add `IsWordChar`
+  * [New] `ES2017`+ add `WordCharacters`
+  * [New] `ES2015`+: add `Canonicalize`
+  * [New] `ES2015`+: add `NewPromiseCapability`
+  * [Fix] `ES2017+`: `NumberToRawBytes`, `NumericToRawBytes`: reimplement Float64, fix integer scenarios
+  * [Refactor] add `helpers/isLineTerminator`
+  * [Refactor] add `isInteger` helper, and use it
+  * [Refactor] extract `isStringOrHole` to a helper
+  * [Refactor] `ES2017`+: `RawBytesToNumber`, `RawBytesToNumeric`: extract common code to helpers
+  * [Refactor] make a MAX_VALUE helper
+  * [Tests] fix RawBytesToNumeric tests in node v10.4-10.8
+  * [Tests] fix buffer test cases in node v10.4-v10.8
+
 1.21.3 / 2023-07-12
@@ -2,0 +23,0 @@ =================

es2015.js

@@ -15,2 +15,3 @@ 'use strict';
 	Call: require('./2015/Call'),
+	Canonicalize: require('./2015/Canonicalize'),
 	CanonicalNumericIndexString: require('./2015/CanonicalNumericIndexString'),
@@ -45,2 +46,3 @@ CharacterRange: require('./2015/CharacterRange'),
 	GetV: require('./2015/GetV'),
+	GetValueFromBuffer: require('./2015/GetValueFromBuffer'),
 	HasOwnProperty: require('./2015/HasOwnProperty'),
@@ -67,2 +69,3 @@ HasProperty: require('./2015/HasProperty'),
 	IsRegExp: require('./2015/IsRegExp'),
+	IsWordChar: require('./2015/IsWordChar'),
 	IteratorClose: require('./2015/IteratorClose'),
@@ -82,2 +85,3 @@ IteratorComplete: require('./2015/IteratorComplete'),
 	msFromTime: require('./2015/msFromTime'),
+	NewPromiseCapability: require('./2015/NewPromiseCapability'),
 	NormalCompletion: require('./2015/NormalCompletion'),
@@ -101,2 +105,3 @@ ObjectCreate: require('./2015/ObjectCreate'),
 	SetIntegrityLevel: require('./2015/SetIntegrityLevel'),
+	SetValueInBuffer: require('./2015/SetValueInBuffer'),
 	SpeciesConstructor: require('./2015/SpeciesConstructor'),
@@ -103,0 +108,0 @@ SplitMatch: require('./2015/SplitMatch'),

es2016.js

@@ -15,2 +15,3 @@ 'use strict';
 	Call: require('./2016/Call'),
+	Canonicalize: require('./2016/Canonicalize'),
 	CanonicalNumericIndexString: require('./2016/CanonicalNumericIndexString'),
@@ -45,2 +46,3 @@ CharacterRange: require('./2016/CharacterRange'),
 	GetV: require('./2016/GetV'),
+	GetValueFromBuffer: require('./2016/GetValueFromBuffer'),
 	HasOwnProperty: require('./2016/HasOwnProperty'),
@@ -67,2 +69,3 @@ HasProperty: require('./2016/HasProperty'),
 	IsRegExp: require('./2016/IsRegExp'),
+	IsWordChar: require('./2016/IsWordChar'),
 	IterableToArrayLike: require('./2016/IterableToArrayLike'),
@@ -83,2 +86,3 @@ IteratorClose: require('./2016/IteratorClose'),
 	msFromTime: require('./2016/msFromTime'),
+	NewPromiseCapability: require('./2016/NewPromiseCapability'),
 	NormalCompletion: require('./2016/NormalCompletion'),
@@ -105,2 +109,3 @@ ObjectCreate: require('./2016/ObjectCreate'),
 	SetIntegrityLevel: require('./2016/SetIntegrityLevel'),
+	SetValueInBuffer: require('./2016/SetValueInBuffer'),
 	SpeciesConstructor: require('./2016/SpeciesConstructor'),
@@ -136,2 +141,4 @@ SplitMatch: require('./2016/SplitMatch'),
 	Type: require('./2016/Type'),
+	TypedArrayCreate: require('./2016/TypedArrayCreate'),
+	TypedArraySpeciesCreate: require('./2016/TypedArraySpeciesCreate'),
 	UTF16Decode: require('./2016/UTF16Decode'),
@@ -138,0 +145,0 @@ UTF16Encoding: require('./2016/UTF16Encoding'),

es2017.js

@@ -15,2 +15,3 @@ 'use strict';
 	Call: require('./2017/Call'),
+	Canonicalize: require('./2017/Canonicalize'),
 	CanonicalNumericIndexString: require('./2017/CanonicalNumericIndexString'),
@@ -45,2 +46,3 @@ CharacterRange: require('./2017/CharacterRange'),
 	GetV: require('./2017/GetV'),
+	GetValueFromBuffer: require('./2017/GetValueFromBuffer'),
 	HasOwnProperty: require('./2017/HasOwnProperty'),
@@ -68,2 +70,3 @@ HasProperty: require('./2017/HasProperty'),
 	IsSharedArrayBuffer: require('./2017/IsSharedArrayBuffer'),
+	IsWordChar: require('./2017/IsWordChar'),
 	IterableToList: require('./2017/IterableToList'),
@@ -84,2 +87,3 @@ IteratorClose: require('./2017/IteratorClose'),
 	msFromTime: require('./2017/msFromTime'),
+	NewPromiseCapability: require('./2017/NewPromiseCapability'),
 	NormalCompletion: require('./2017/NormalCompletion'),
@@ -109,2 +113,3 @@ NumberToRawBytes: require('./2017/NumberToRawBytes'),
 	SetIntegrityLevel: require('./2017/SetIntegrityLevel'),
+	SetValueInBuffer: require('./2017/SetValueInBuffer'),
 	SpeciesConstructor: require('./2017/SpeciesConstructor'),
@@ -142,2 +147,4 @@ SplitMatch: require('./2017/SplitMatch'),
 	Type: require('./2017/Type'),
+	TypedArrayCreate: require('./2017/TypedArrayCreate'),
+	TypedArraySpeciesCreate: require('./2017/TypedArraySpeciesCreate'),
 	UTF16Decode: require('./2017/UTF16Decode'),
@@ -149,2 +156,3 @@ UTF16Encoding: require('./2017/UTF16Encoding'),
 	WeekDay: require('./2017/WeekDay'),
+	WordCharacters: require('./2017/WordCharacters'),
 	YearFromTime: require('./2017/YearFromTime')
@@ -151,0 +159,0 @@ };

es2018.js

@@ -16,2 +16,3 @@ 'use strict';
 	Call: require('./2018/Call'),
+	Canonicalize: require('./2018/Canonicalize'),
 	CanonicalNumericIndexString: require('./2018/CanonicalNumericIndexString'),
@@ -49,2 +50,3 @@ CharacterRange: require('./2018/CharacterRange'),
 	GetV: require('./2018/GetV'),
+	GetValueFromBuffer: require('./2018/GetValueFromBuffer'),
 	HasOwnProperty: require('./2018/HasOwnProperty'),
@@ -72,2 +74,3 @@ HasProperty: require('./2018/HasProperty'),
 	IsStringPrefix: require('./2018/IsStringPrefix'),
+	IsWordChar: require('./2018/IsWordChar'),
 	IterableToList: require('./2018/IterableToList'),
@@ -88,2 +91,3 @@ IteratorClose: require('./2018/IteratorClose'),
 	msFromTime: require('./2018/msFromTime'),
+	NewPromiseCapability: require('./2018/NewPromiseCapability'),
 	NormalCompletion: require('./2018/NormalCompletion'),
@@ -116,2 +120,3 @@ NumberToRawBytes: require('./2018/NumberToRawBytes'),
 	SetIntegrityLevel: require('./2018/SetIntegrityLevel'),
+	SetValueInBuffer: require('./2018/SetValueInBuffer'),
 	SpeciesConstructor: require('./2018/SpeciesConstructor'),
@@ -152,2 +157,4 @@ SplitMatch: require('./2018/SplitMatch'),
 	Type: require('./2018/Type'),
+	TypedArrayCreate: require('./2018/TypedArrayCreate'),
+	TypedArraySpeciesCreate: require('./2018/TypedArraySpeciesCreate'),
 	UnicodeEscape: require('./2018/UnicodeEscape'),
@@ -160,2 +167,3 @@ UTF16Decode: require('./2018/UTF16Decode'),
 	WeekDay: require('./2018/WeekDay'),
+	WordCharacters: require('./2018/WordCharacters'),
 	YearFromTime: require('./2018/YearFromTime')
@@ -162,0 +170,0 @@ };

es2019.js

@@ -18,2 +18,3 @@ 'use strict';
 	Call: require('./2019/Call'),
+	Canonicalize: require('./2019/Canonicalize'),
 	CanonicalNumericIndexString: require('./2019/CanonicalNumericIndexString'),
@@ -52,2 +53,3 @@ CharacterRange: require('./2019/CharacterRange'),
 	GetV: require('./2019/GetV'),
+	GetValueFromBuffer: require('./2019/GetValueFromBuffer'),
 	HasOwnProperty: require('./2019/HasOwnProperty'),
@@ -75,2 +77,3 @@ HasProperty: require('./2019/HasProperty'),
 	IsStringPrefix: require('./2019/IsStringPrefix'),
+	IsWordChar: require('./2019/IsWordChar'),
 	IterableToList: require('./2019/IterableToList'),
@@ -91,2 +94,3 @@ IteratorClose: require('./2019/IteratorClose'),
 	msFromTime: require('./2019/msFromTime'),
+	NewPromiseCapability: require('./2019/NewPromiseCapability'),
 	NormalCompletion: require('./2019/NormalCompletion'),
@@ -119,2 +123,3 @@ NumberToRawBytes: require('./2019/NumberToRawBytes'),
 	SetIntegrityLevel: require('./2019/SetIntegrityLevel'),
+	SetValueInBuffer: require('./2019/SetValueInBuffer'),
 	SpeciesConstructor: require('./2019/SpeciesConstructor'),
@@ -156,2 +161,4 @@ SplitMatch: require('./2019/SplitMatch'),
 	Type: require('./2019/Type'),
+	TypedArrayCreate: require('./2019/TypedArrayCreate'),
+	TypedArraySpeciesCreate: require('./2019/TypedArraySpeciesCreate'),
 	UnicodeEscape: require('./2019/UnicodeEscape'),
@@ -164,2 +171,3 @@ UTF16Decode: require('./2019/UTF16Decode'),
 	WeekDay: require('./2019/WeekDay'),
+	WordCharacters: require('./2019/WordCharacters'),
 	YearFromTime: require('./2019/YearFromTime')
@@ -166,0 +174,0 @@ };

es2020.js

@@ -23,2 +23,3 @@ 'use strict';
 	Call: require('./2020/Call'),
+	Canonicalize: require('./2020/Canonicalize'),
 	CanonicalNumericIndexString: require('./2020/CanonicalNumericIndexString'),
@@ -59,2 +60,3 @@ CharacterRange: require('./2020/CharacterRange'),
 	GetV: require('./2020/GetV'),
+	GetValueFromBuffer: require('./2020/GetValueFromBuffer'),
 	HasOwnProperty: require('./2020/HasOwnProperty'),
@@ -87,2 +89,4 @@ HasProperty: require('./2020/HasProperty'),
 	IsUnsignedElementType: require('./2020/IsUnsignedElementType'),
+	IsValidIntegerIndex: require('./2020/IsValidIntegerIndex'),
+	IsWordChar: require('./2020/IsWordChar'),
 	IterableToList: require('./2020/IterableToList'),
@@ -104,2 +108,3 @@ IteratorClose: require('./2020/IteratorClose'),
 	msFromTime: require('./2020/msFromTime'),
+	NewPromiseCapability: require('./2020/NewPromiseCapability'),
 	NormalCompletion: require('./2020/NormalCompletion'),
@@ -134,2 +139,3 @@ Number: require('./2020/Number'),
 	SetIntegrityLevel: require('./2020/SetIntegrityLevel'),
+	SetValueInBuffer: require('./2020/SetValueInBuffer'),
 	SpeciesConstructor: require('./2020/SpeciesConstructor'),
@@ -178,2 +184,4 @@ SplitMatch: require('./2020/SplitMatch'),
 	Type: require('./2020/Type'),
+	TypedArrayCreate: require('./2020/TypedArrayCreate'),
+	TypedArraySpeciesCreate: require('./2020/TypedArraySpeciesCreate'),
 	UnicodeEscape: require('./2020/UnicodeEscape'),
@@ -187,2 +195,3 @@ UTF16DecodeString: require('./2020/UTF16DecodeString'),
 	WeekDay: require('./2020/WeekDay'),
+	WordCharacters: require('./2020/WordCharacters'),
 	YearFromTime: require('./2020/YearFromTime')
@@ -189,0 +198,0 @@ };

es2021.js

@@ -27,2 +27,3 @@ 'use strict';
 	Call: require('./2021/Call'),
+	Canonicalize: require('./2021/Canonicalize'),
 	CanonicalNumericIndexString: require('./2021/CanonicalNumericIndexString'),
@@ -32,2 +33,3 @@ CharacterRange: require('./2021/CharacterRange'),
 	ClearKeptObjects: require('./2021/ClearKeptObjects'),
+	CloneArrayBuffer: require('./2021/CloneArrayBuffer'),
 	CodePointAt: require('./2021/CodePointAt'),
@@ -68,2 +70,3 @@ CodePointsToString: require('./2021/CodePointsToString'),
 	GetV: require('./2021/GetV'),
+	GetValueFromBuffer: require('./2021/GetValueFromBuffer'),
 	HasOwnProperty: require('./2021/HasOwnProperty'),
@@ -95,2 +98,4 @@ HasProperty: require('./2021/HasProperty'),
 	IsUnsignedElementType: require('./2021/IsUnsignedElementType'),
+	IsValidIntegerIndex: require('./2021/IsValidIntegerIndex'),
+	IsWordChar: require('./2021/IsWordChar'),
 	IterableToList: require('./2021/IterableToList'),
@@ -112,2 +117,3 @@ IteratorClose: require('./2021/IteratorClose'),
 	msFromTime: require('./2021/msFromTime'),
+	NewPromiseCapability: require('./2021/NewPromiseCapability'),
 	NormalCompletion: require('./2021/NormalCompletion'),
@@ -142,2 +148,5 @@ Number: require('./2021/Number'),
 	SetIntegrityLevel: require('./2021/SetIntegrityLevel'),
+	SetTypedArrayFromArrayLike: require('./2021/SetTypedArrayFromArrayLike'),
+	SetTypedArrayFromTypedArray: require('./2021/SetTypedArrayFromTypedArray'),
+	SetValueInBuffer: require('./2021/SetValueInBuffer'),
 	SpeciesConstructor: require('./2021/SpeciesConstructor'),
@@ -189,2 +198,4 @@ SplitMatch: require('./2021/SplitMatch'),
 	Type: require('./2021/Type'),
+	TypedArrayCreate: require('./2021/TypedArrayCreate'),
+	TypedArraySpeciesCreate: require('./2021/TypedArraySpeciesCreate'),
 	UnicodeEscape: require('./2021/UnicodeEscape'),
@@ -199,2 +210,3 @@ UTF16EncodeCodePoint: require('./2021/UTF16EncodeCodePoint'),
 	WeekDay: require('./2021/WeekDay'),
+	WordCharacters: require('./2021/WordCharacters'),
 	YearFromTime: require('./2021/YearFromTime')
@@ -201,0 +213,0 @@ };

es2022.js

@@ -24,2 +24,3 @@ 'use strict';
 	Call: require('./2022/Call'),
+	Canonicalize: require('./2022/Canonicalize'),
 	CanonicalNumericIndexString: require('./2022/CanonicalNumericIndexString'),
@@ -29,2 +30,3 @@ CharacterRange: require('./2022/CharacterRange'),
 	ClearKeptObjects: require('./2022/ClearKeptObjects'),
+	CloneArrayBuffer: require('./2022/CloneArrayBuffer'),
 	CodePointAt: require('./2022/CodePointAt'),
@@ -69,2 +71,3 @@ CodePointsToString: require('./2022/CodePointsToString'),
 	GetV: require('./2022/GetV'),
+	GetValueFromBuffer: require('./2022/GetValueFromBuffer'),
 	HasOwnProperty: require('./2022/HasOwnProperty'),
@@ -101,2 +104,4 @@ HasProperty: require('./2022/HasProperty'),
 	IsUnsignedElementType: require('./2022/IsUnsignedElementType'),
+	IsValidIntegerIndex: require('./2022/IsValidIntegerIndex'),
+	IsWordChar: require('./2022/IsWordChar'),
 	IterableToList: require('./2022/IterableToList'),
@@ -119,2 +124,3 @@ IteratorClose: require('./2022/IteratorClose'),
 	msFromTime: require('./2022/msFromTime'),
+	NewPromiseCapability: require('./2022/NewPromiseCapability'),
 	NormalCompletion: require('./2022/NormalCompletion'),
@@ -150,2 +156,5 @@ Number: require('./2022/Number'),
 	SetIntegrityLevel: require('./2022/SetIntegrityLevel'),
+	SetTypedArrayFromArrayLike: require('./2022/SetTypedArrayFromArrayLike'),
+	SetTypedArrayFromTypedArray: require('./2022/SetTypedArrayFromTypedArray'),
+	SetValueInBuffer: require('./2022/SetValueInBuffer'),
 	SortIndexedProperties: require('./2022/SortIndexedProperties'),
@@ -199,4 +208,6 @@ SpeciesConstructor: require('./2022/SpeciesConstructor'),
 	Type: require('./2022/Type'),
+	TypedArrayCreate: require('./2022/TypedArrayCreate'),
 	TypedArrayElementSize: require('./2022/TypedArrayElementSize'),
 	TypedArrayElementType: require('./2022/TypedArrayElementType'),
+	TypedArraySpeciesCreate: require('./2022/TypedArraySpeciesCreate'),
 	UnicodeEscape: require('./2022/UnicodeEscape'),
@@ -211,2 +222,3 @@ UTF16EncodeCodePoint: require('./2022/UTF16EncodeCodePoint'),
 	WeekDay: require('./2022/WeekDay'),
+	WordCharacters: require('./2022/WordCharacters'),
 	YearFromTime: require('./2022/YearFromTime')
@@ -213,0 +225,0 @@ };

es5.js

@@ -11,2 +11,3 @@ 'use strict';
 	abs: require('./5/abs'),
+	Canonicalize: require('./5/Canonicalize'),
 	CheckObjectCoercible: require('./5/CheckObjectCoercible'),
@@ -13,0 +14,0 @@ DateFromTime: require('./5/DateFromTime'),

helpers/assertRecord.js

@@ -9,2 +9,3 @@ 'use strict';
 var has = require('has');
+var isInteger = require('./isInteger');
 
@@ -61,2 +62,17 @@ var isMatchRecord = require('./isMatchRecord');
 			&& predicates['PromiseCapability Record'](value['[[Capability]]']);
+	},
+	'RegExp Record': function isRegExpRecord(value) {
+		return value
+			&& has(value, '[[IgnoreCase]]')
+			&& typeof value['[[IgnoreCase]]'] === 'boolean'
+			&& has(value, '[[Multiline]]')
+			&& typeof value['[[Multiline]]'] === 'boolean'
+			&& has(value, '[[DotAll]]')
+			&& typeof value['[[DotAll]]'] === 'boolean'
+			&& has(value, '[[Unicode]]')
+			&& typeof value['[[Unicode]]'] === 'boolean'
+			&& has(value, '[[CapturingGroupsCount]]')
+			&& typeof value['[[CapturingGroupsCount]]'] === 'number'
+			&& isInteger(value['[[CapturingGroupsCount]]'])
+			&& value['[[CapturingGroupsCount]]'] >= 0;
 	}
@@ -63,0 +79,0 @@ };

index.js

@@ -14,2 +14,3 @@ 'use strict';
 var ES2022 = require('./es2022');
+var ES2023 = require('./es2023');
 
@@ -27,3 +28,4 @@ var ES = {
 	ES2021: ES2021,
-	ES2022: ES2022
+	ES2022: ES2022,
+	ES2023: ES2023
 };
@@ -30,0 +32,0 @@ assign(ES, ES5);

operations/2021.js

@@ -1273,2 +1273,5 @@ 'use strict';
 	},
+	WordCharacters: {
+		url: 'https://262.ecma-international.org/12.0/#sec-runtime-semantics-wordcharacters-abstract-operation'
+	},
 	YearFromTime: {
@@ -1275,0 +1278,0 @@ url: 'https://262.ecma-international.org/12.0/#eqn-YearFromTime'

operations/2022.js

@@ -1363,2 +1363,5 @@ 'use strict';
 	},
+	WordCharacters: {
+		url: 'https://262.ecma-international.org/13.0/#sec-runtime-semantics-wordcharacters-abstract-operation'
+	},
 	YearFromTime: {
@@ -1365,0 +1368,0 @@ url: 'https://262.ecma-international.org/13.0/#eqn-YearFromTime'

package.json

 {
 	"name": "es-abstract",
-	"version": "1.21.3",
+	"version": "1.22.0",
 	"author": {
@@ -29,3 +29,3 @@ "name": "Jordan Harband",
 		"prespackle": "git ls-files | xargs git check-attr spackled | grep -v 'unspecified$' | cut -d: -f1 | xargs rm || true",
-		"spackle": "node operations/spackle 1",
+		"spackle": "node operations/spackle 1 && node operations/build-unicode.mjs",
 		"postspackle": "git ls-files | xargs git check-attr spackled | grep -v 'unspecified$' | cut -d: -f1 | xargs git add",
@@ -60,2 +60,3 @@ "prepack": "npmignore --auto --commentLines=autogenerated",
 		"array-buffer-byte-length": "^1.0.0",
+		"arraybuffer.prototype.slice": "^1.0.1",
 		"available-typed-arrays": "^1.0.5",
@@ -91,2 +92,4 @@ "call-bind": "^1.0.2",
 		"string.prototype.trimstart": "^1.0.6",
+		"typed-array-buffer": "^1.0.0",
+		"typed-array-byte-length": "^1.0.0",
 		"typed-array-byte-offset": "^1.0.0",
@@ -99,2 +102,3 @@ "typed-array-length": "^1.0.4",
 		"@ljharb/eslint-config": "^21.1.0",
+		"@unicode/unicode-15.0.0": "^1.3.1",
 		"array.from": "^1.1.4",
@@ -118,2 +122,3 @@ "array.prototype.filter": "^1.0.2",
 		"is-core-module": "^2.12.1",
+		"is-registered-symbol": "^1.0.1",
 		"make-arrow-function": "^1.2.0",
@@ -120,0 +125,0 @@ "make-async-function": "^1.0.0",

New alerts

Filesystem access

Supply chain risk

Accesses the file system, and could potentially read sensitive data.

Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

2021039

increased by28.81%

Number of package files

1828

increased by23.18%

Lines of code

55391

increased by28.21%

Worsened metrics

Dependency count

38

increased by8.57%

Dev dependency count

32

increased by6.67%

Number of low supply chain risk alerts

1

increased byInfinity%

Dependency changes

• + Addedarraybuffer.prototype.slice@^1.0.1

• + Addedtyped-array-buffer@^1.0.0

• + Addedtyped-array-byte-length@^1.0.0